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1.
The art of replying to an insult with a witty word, statement or sentence.
Well at least I don't fuckarse!
by wormstrangler April 04, 2003
 
2.
here is a good comeback:
hey! u keep my mum outta this, and i'll keep 'this' outta ur mum
ya mum, huhuhuh im an idiot who uses this insult to everything
well, (use comeback here, u devilishly smart guy u)
by jason hua August 17, 2004
 
3.
Comeback-ing truly is an artform. Attempted by many, mastered by few, it is art of quickly replying to an insult with and even better insult. To conquer the skill of the comeback there are 2 skils necessary; Quick wit and originality.
Pimpely faced person: Hey!
Loser idiot boy: Omg! have you heard of Pro-Activ?
Pimpely faced person: It's a part of growing up, not that you would know!
Random guy who pops up: Snap Crackle and Pop!

guy: Yo mamma is so fat she is like a whale! hahaha
other witter guy: Yo mamma's so fat i burnt my ass on the light when i was fucking her last night!
Guy: ... *punches other witter guy in balls to try and prove his manlyness after being completly owned*

A few weeks later....

Guy: yo mammas so fat i burnt my ass on the light last night when i was fucking her
other wittier guy: Dude, if i wanted my own comeback i'd wipe it off your mums face!
Guy: ...
Other wittier guy: *runs away because he doesnt want to get hit in the balls again and unlike the other guy he learns from his previuos experiences*
by e-foshizzle March 14, 2008
 
4.
n. A response to an insult.
I can never come up with good comebacks; now is no exception.
by The Grammar Nazi February 20, 2002
 
5.
1. A witty and comical insult used to be hurtful

2. The act of reappearing from a long break(but not as a retirement)
Matt called Janie fat, so Janie decided with a comeback with ''Oh yeah I'm fat your ugly. I can diet''

I have made a comeback to Urban Dictionary
by DizzyLizzy November 15, 2006
 
6.
1) A return that involves some type of improvement.

2) A reply to an insult; a witty retort.
1) Andres Galarraga made an honorable comeback from cancer.

2) His comeback was really good; my jaw must have dropped half a foot.
by Diggity Monkeez February 17, 2005
 
7.
When a well known artist, player, entertainer comes back after a long wait with something truly amazing.
Someone: When is EXO having their comeback?

Me: ha. hahHAHAHHAHHHAHAHEHEHAHAHUAHEHAHAHAHEHH
by nitaotao May 12, 2013