your mother's vagina.
this is a witty insult one can throw into conversation randomly. usually it involves doing something suggestive to the victim's mother's box.
this is a witty insult one can throw into conversation randomly. usually it involves doing something suggestive to the victim's mother's box.
by Celina P May 24, 2006

Something that you must never never look at touch or smell. Also something that you tell your friends to go eat.
by not poor January 21, 2003

Dude #1: "Hey man, what's that smell?"
Dude #2: "Yeah it smells like rotting sea food or something."
Dude #3: "It must be your mom's box"
Dude #2: "Yeah it smells like rotting sea food or something."
Dude #3: "It must be your mom's box"
by emmaomao January 8, 2010

A random varient of the Your Mom dis. Don't actually use it in a real fight since you'll most likely get your sorry ass laughed at. Use it more with sarcasm or jokes around friends.
1. Some person: You dumb shit
You: Your mom in a box
2. Some person: What the hell do you want?
You: Your mom in a box
You: Your mom in a box
2. Some person: What the hell do you want?
You: Your mom in a box
by Chris March 23, 2005

by mocracy June 18, 2010
