Jimmy Kimmel has found a new nickname for Donald Trump.

And this one goes directly after a vulnerability Trump once relentlessly used against Joe Biden.

During his Tuesday-night monologue, Kimmel mocked the 80-year-old president over footage from the Sept. 11 memorial at the Pentagon in which Trump appeared to close his eyes and dip his head for extended periods.

The White House denied that Trump was sleeping.

Kimmel was not convinced.

His new name for the president:

“Teddy Doze-evelt.”

“At the event, Teddy Doze-evelt got in a pretty good nap,” Kimmel joked.

The line was a play on Theodore Roosevelt’s name — and on Trump’s long history of branding Biden “Sleepy Joe.”

That irony became the centerpiece of the segment.

Kimmel argued that Trump spent years attacking Biden over age and alertness, only to repeatedly face similar scrutiny himself.

“It’s so perfect,” Kimmel said.

“The guy who spent four years screaming, ‘Sleepy Joe, Sleepy Joe,’ constantly falling asleep on camera.”

The monologue followed renewed attention on Trump’s appearance at the Pentagon ceremony marking the 25th anniversary of the Sept. 11 terrorist attacks.

Photographs and video showed Trump with his eyes closed at several points while seated beside first lady Melania Trump.

His head also appeared to dip forward during portions of the ceremony.

The White House rejected suggestions that the president was asleep.

Officials said Trump was “solemnly listening” and honoring the victims.

That explanation became another punchline for Kimmel.

“They said he was just ‘solemnly listening,’” the comedian said before making a joke about Melania.

The underlying question, however, cannot be settled from short video clips alone.

Images can show Trump with his eyes closed.

They cannot establish with certainty whether he was actually asleep at every moment.

Still, Kimmel had plenty of footage to work with.

The host played a lengthy montage of other public events where Trump had appeared with his eyes closed or seemed to nod off.

The clips reportedly included moments from his 2025 inauguration, Fourth of July celebrations, an NBA Finals game, Memorial Day ceremonies at Arlington National Cemetery and Cabinet meetings.

Kimmel also included footage from high-profile funerals and previous Sept. 11 commemorations.

Not every clip necessarily proves that Trump was sleeping.

In some cases, a photograph or a few seconds of video may capture someone blinking, resting their eyes or looking downward.

Trump himself has previously rejected claims that he slept during Cabinet meetings.

Earlier this year, he said his eyes were closed because the meetings were “pretty boring.”

But the recurring imagery has nevertheless become political and comedic material.

California Gov. Gavin Newsom previously used his own nickname — “Dozy Don” — after another appearance in which Trump seemed to have his eyes closed.

Kimmel clearly decided he could improve on it.

“Teddy Doze-evelt” immediately tied the visual joke to presidential history.

More importantly, it allowed Kimmel to revisit Trump’s own treatment of Biden.

Age and mental acuity were major political themes during the Biden years.

Trump repeatedly portrayed his predecessor as weak, tired and incapable of handling the presidency.

“Sleepy Joe” became one of Trump’s most frequently repeated nicknames.

Now Trump is 80.

That has inevitably brought more attention to his own public appearances.

But footage of a president closing his eyes does not provide a medical diagnosis, and Kimmel’s jokes should not be treated as evidence of a health condition.

They are political comedy.

The White House maintains that Trump remains energetic and capable of carrying out his duties.

Kimmel’s segment was designed to highlight what he sees as the contradiction between that image and the accumulating clips.

The comedian even brought Mitch McConnell into the routine.

The 84-year-old Kentucky senator returned to Washington this week after spending more than 90 days away while recovering from a serious health episode.

McConnell arrived at the Capitol in a wheelchair and acknowledged that he was “not quite back to 100 percent.”

Kimmel used the comparison to give Trump a backhanded compliment.

“Compared to Mitch McConnell, Trump has more energy than Kevin Hart,” he joked.

He then played footage of McConnell’s return.

“He seems good, right?” Kimmel added sarcastically.

The segment was classic late-night television: exaggeration, selective clips and a carefully constructed punchline.

But the political irony giving the joke its power is factual.

Trump made Biden’s age and perceived sleepiness part of his political brand for years.

Now his own moments with closed eyes are receiving the same treatment.

And Kimmel has given critics a new phrase to attach to them.

“Sleepy Joe” was Trump’s invention.

“Teddy Doze-evelt” belongs to Jimmy Kimmel.

Whether the nickname lasts is another question.

But after Tuesday night, Trump’s own favorite line of attack has been turned back on him.