The last thing to be said before one leaves or exits for what may be the final time; famous last words.
IE: If you are radio DJ's leaving work on Friday not knowing if you will be back because one of your on air contests went awry in a Church, the last thing they say as their shift ends is, "Your mom's box."
by Grizzly April 21, 2003
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the last words of Opie and Anthony when they signed off of terrestrial radio for the last time.
Opie,Anthony and Little Jimmy Norton ended the show by saying "Your Mom's Box"
by Pest April 7, 2006
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a phase commonly spoken before a radio show ends, signifying that they may not be heard the next day.
oh, yea, and your moms box. (cue closing song)
by SatCam April 15, 2004
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the last thing that psycho mark, opie and anthony said before they got taken off the air in NY
by Anonymous April 21, 2003
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what everyone gets at your sleepover
we all got some of your mom's ponani at you sleepover last weekend also known as your mom's box
by your mom's bed buddy April 20, 2009
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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 ice cream is so good!
: Almost as delicious as your mom's box!

by Celina P May 17, 2006
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Something that you must never never look at touch or smell. Also something that you tell your friends to go eat.
Hey go eat your mom's box.
by not poor January 21, 2003
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