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243.
A phrase used when somebody doesn't know any good comebacks.

Also used as part of a joke

The woman who gave birth to you
Person1: You're so gay
Person2: Your mom

Your mom's so fat she stepped in the ocean and said 'Who put this puddle here?'

Person: I'd like you to meet your mom, Casie
by Stepheli November 10, 2005
 
36.
A saying used in foolish response to any question or statement. A form of comic relief made by a teenage male at the lunch table or in the middle of english class. Can be added to any statement for comical effect.
..so today class we will be discussing Shakespeares entire works.....

Guy: Hey man, do you have your notes from yesterday?
Guy 2: Nope...i left them with YOUR MOM last night.

Girl: Hey what did you decide to do about that project you didnt turn in
Idiotic Guy: uh. ....YOUR MOM!
by brent April 19, 2005
 
37.
answer to any and every question anyone asks you
friend:who are you talking to on the phone
you: your mom

sister:your ugly
you: your mom
by David's girl July 14, 2005
 
38.
A comeback, way of saying hello/bye, the all around best insult ever although to many not insulting.
Billy: Hey fred ur gay!
Joe: Your mom!
Billy: Joe... my mom's dead.
Joe: That's the way I like 'em!
by benopian January 25, 2004
 
39.
A source of great sexual pleasure and gratification.
Holy cow, i'm horny. Hey Phil, where is your mom at?
by mastamike January 09, 2004
 
40.
a general term, thrown out when you have no idea what someone is saying or just have no reply.
jim:hey ron, what are they having for lunch in the cafeteria.
ron:hmmmm,i dont know...a big side of
"your mom".
jim:fuck you dude
ron:like i did "your mom"
jim:whatever
by the ron August 06, 2004
 
41.
(1) The comeback to all of those witty insults that people choose to throw at you. often used in conjuction with your face.

(2) Great in awkward situations and when you can't think of anything to say...
(1) Dude 1: yea, my brother's going to college in a couple weeks
Dude 2: YEA, well your mom goes to college!
Dude 1: uh...YOUR FACE goes to college!
Dude 2: thats low dude. YOUR MOM'S FACE goes to college!
Dude 1: WELL YOUR MOM'S FACE GOES TO COLLEGE!!!
Dude 2: dude. that really is low.
Dude 1: PWNED
by un haiduc March 03, 2005
 
42.
a cut down used when one person realizes that they have been cut down and dont have anythig good to say.
smart: hey dude why dont you go to the doctor and ask him to find a ghostly outline of where your balls used to be and have him put some new ones on

retard: oh yeah well..... YOUR MOM
by cumshot22 April 15, 2003