Sure, these guys were known for lots of other good humor, but I can guarantee that 99% of a casual humor fan will name that ONE routine when asked about them, and many probably couldn’t even name another one. Lets start a list.
Abbott & Costello - Who’s On First
Jeff Foxworthy - You Might Be a Redneck
I was watching something the other day…totally forget what it was. Some sort of clip show with a bunch of talking head comedians. Maybe it was the Lewis Black New Year’s special.
Anyway, John Pinette was on and at the end of the program they showed clips of the comedians goofing around with the interviewers. Pinette broke in to a bit of his Chinese buffet routine…
You know the one - “You go now! You here four hour!” a clip
I remember seeing him do that ages ago, on that stand-up TV show that was popular in the 90s. I checked out his stuff that’s available on YouTube and even his home site, and it seems that his entire career has been jokes about buffets.
Still pretty funny, tho 
Vaughn Meader was really a one-hit wonder. He was a comedian/impersonator who was hugely famous for a 1962 album called The First Family, in which he made fun of JFK and his family. It was the fastest-selling record in the history of the US and sold over 7.5 million copies. But after the Kennedy assassination the next year, his career virtually ended - all his records were pulled from stores, and he couldn’t get work again, being so closely associated with JFK.
Carrot Top and that one joke he did with the props.
No one is ever gonna to “Well you can call me Ray or you can call me Jay or you…But you doesn’t have to call me Mr Johnson”
Gallagher, smashing watermelons with a sledgehammer.
“In Soviet Russia, comedians laugh at you!”
Andrew Dice Clay - Dirty Nursery Rhymes.
I love Steven Wright, and his jokes do vary, but his shtick is always the same.
His new face could be considered comical, in a creepy way.
Silence! I keel you!
Howie Mandel, when I hear his name the first image my mind paints is Howie putting a condom on his head and inflating it.
No, that’s just the one on youtube. One of his funniest was when they tried to get him on a roller coaster (Pinette, for obvious reasons, tells a lot of jokes pertaining to his weight). There was also a funny bit about his being cast for Hairspray (he played Edna on Broadway).
Modern comedians need to come up with new material constantly; it’s the vaudeville ones who used to be able to stick to one routine for years (Even Jeff Foxworthy’s “You Might be a Redneck” slowly changes as he adds new jokes and drops others, though they all have the same punchine).
George Carlin–Seven words you cannot say in television.
The Nightmare on Elm Street movies had one-liners, too, but that didn’t make them comedies…
“Here’s your sign.”
Bill Engvall, although I had to look up his name.
Abbott and Costello a “One Hit Wonder” with “Who’s on First”??? That’s like calling Groucho Marx a One Hit Wonder with “I Shot an Elephant in my Pajamas”.
If they’re seen that way today it’s because of the lack of need of indie stations, on-demand movie suppliers, and video sellers to market older movies. When the movies were new and for years afterwards peopole saw the Abott and Costello repertoire, and were familiar with
Seven times Thirteen is 28
In Fifteen Years You’ll be Twice Her Age
Slowly I Turned
and others
I agree that Abbott and Costello are definitely NOT one hit wonders. I always had a soft spot for “Lemon Stand”, “Strawberry Ice Cream,” and “Seven times Thirteen is 28”
Of course my parents had a “Best of” VHS tape that we watched often, so I might be more familiar than most my age.
Yakov Smirnoff: “In America, you can always find a party. In Soviet Russia… party finds you!”
If you mention Larry the Cable Guy to most people they will respond with “Oh yeah, he’s the ‘Git er Done!’ guy :rolleyes: I can’t stand him.” But they’ve never actually heard his stand-up which is pretty damn funny.