a word spit out at any given time or place when someone (most likely a complete idiot) has absolutely no idea what to say
Hilary: Have you beeen havin a affair?!
Bill: uhh...
Hilary: Tell me! Who have you been doin stuff with lately?
Bill: YOUR MOM!
by michael jackson November 21, 2003
My answer to everything.
Teacher: Why didn't you turn in your homework?
Me: Your mom.
-
Teacher: What do you think your doing, sleeping in class?!
Me:...Your mom.
-
Teacher: Any questions?
Me: Your mom... I mean, your mom?
by Violetownz January 17, 2008
An insult that can apply to almost anyone at anytime. It is regarded the best insult ever.
Bill: Just Put the book in the bag.
Joe: Your mom put it in!
by Nico April 25, 2005
Your Mom is the person I had sex with last night.
Your Mom, ask her.
by Ploofy 4 January 11, 2010
an answer to any question if you dont know the answer.
Homie: Hey whats 2 plus 2??
Homie#2: Your mom!!
by PuNkY July 15, 2003
Your mom, according to experts of psychiatry; is the fattest, ugliest, hottest, dumbest, most sexually active person in the history of the world.

Also a great conversation ender.
Ex 1:

Person 1: Hey dude, what did you do yesterday?

Person 2: Your mom.



Ex 2:

Person 1: So, Frank Macfarlane Burnet was an Australian virologist best known for his contributions to immunology. He conducted pioneering research on bacteri-

Person 2: Your mom.

Person 1:....

by YER FATHA January 05, 2009
Woman who either 1) pushed you through her vagina or 2) had surgery to have you removed.
Your mom gave birth to you after going through 12 hours of labor.
by YourMomOnFour June 18, 2008
The chick I fucked last night.
"I heard you scored some pussy! Who'd you do?"
"Your mom"
by The Tomb January 23, 2008

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