A guy who saved NBC Late Night's sorry ass twice in one decade. First time was in 2000 by resurrecting Weekend Update (with much help from Tina Fey), turning it into a fun and clever guy-girl exchange that worked wonders. Second time was in 2009 after the whole Leno-Conan reshuffling clusterfuck didn't work out, leaving Fallon as NBC's only non-fail comedian (out of four) still standing.

Writes jokes that are smart, relevant, and actually funny (unlike Leno). Also unlike Leno, his comedy sketches actually reflect some effort and creativity (i.e. Remix the Clips) instead of being tired ripoffs or just mooching off user input for humor. If there were justice in the world, Fallon would host the Tonight Show and Leno would get bumped to 4:03 AM on Telemundo.

A pretty good impressionist and parody songwriter, too.
Conan at his peak was still the best, but as replacements go, you gotta admit this Jimmy Fallon motherfucker is aiiiiiiite
by CrunchyCookie November 13, 2010
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Quite possibly the least talented, least funny human being in existence. The living embodiment of "mediocrity". The personification of "cringe". 🤦 ♂️😬

As a stand-up comedian fallon was known for his mildly decent celebrity impressions — which sounded like the celebrities he was imitating, though he never made any actual "jokes" using said impressions. On saturday night live he was known for constantly breaking character and laughing in every sketch he was in (a characteristic lorne michaels seemed to adore 🙄). As a late night talk show host jimmy fallon is renowned for his poor monologue delivery, terrible jokes which illicit no laughter (unless you're a live audience member who is forced to fake laugh whenever the "applause sign" lights up), shitty interviewing skills, and forcing his celebrity guests to play asinine games as a "time filler" and as a distraction from his complete and utter lack of comedic talent.
by Squat Cobbler 187 January 30, 2023
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the act of filling the anus with cheerios and ejaculating onto them at 7:07 AM. Breakfast is the most important meal of the day so don’t skip it little girl
Baby im hungry, can i have dirty fallon?”
by Dirtydirtyniño October 21, 2020
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Former cast member from SNL. Extremely talented with impersonations. He would break character often, but it would make the skit funnier, since SNL is pretty lame these days. He is the reason Tina Fey(even though she is hot) doesn't look like an idiot on Weekend update since she ruins her lines all the time. Hopefully he will be in a movie that will show off his talents like Ace Ventura did for Jim Carrey.
"And WE'RE BACK!!!!!!!!!!!!!!!!!!!!!!!!"
by Oklahoma smells like shit June 19, 2004
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very nice person cares the world of you. Most people called that are ginger. She can be very funny. Go get a friend called fallon doingmgjkg
Person: I wish i had a friend called fallon donoghue

Me: Imagine not having a friend with that name
by Heidjfjfkajhejdhdhdhdjjfhf February 20, 2022
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A disease for people from the North. Often linked to poverty, 'Fallon Rash' occurs from a diet of chips, gravy and WKD. Sufferers of 'Fallon Rash' often report an urge to shout 'ey ey ey' as they scratch the itch. A key instigator of the 'Fallon Rash' is mild arousal, built up from slowly rubbing themselves against the arms of their chairs at work
"Yuck, look at her Fallon Rash"
or
"'ey ey ey' - it feels good to stratch my Fallon"
by hippyfeet February 1, 2016
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To have crazy ass hair , but it looks good. Just like the legend, Jimmy Fallon.
When I walked in the office Monday morning, Sundance Immediately commented, “Damn Treyvoññ, you got some fresh Fallon Hair.”
by MrRogersSweater December 20, 2019
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