a once annual event orchestrated by a group of adolecences in which random artifacts or "junk" is collected prior to 'Goods-Exchange Day' and discarded on a fellow classmate's lawn known as UL. ensued by much laughter and boisterous behaviour.
man, did we ever hit UL with the drop- off this year!
by ajd August 31, 2004
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When you feel a fart coming while your sitting down,to avoid gas getting caught between your chair and your anus you get on
the edge of the chair and rip one.
Shit, I feel some gas coming, betting take a fart drop-off
by William Mark B. May 24, 2007
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A girl has her mouth wide open waiting for you to cum in her mouth. So then you wait till she opens her eyes and get her in the eye!
AHHHHH!! He just dropped off molly in my eye!! That basturd!
by Shit Head October 19, 2003
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Taking a shit. "Cosbies" refers to the Cosby Show, in which Bill Cosby had approximately fifteen kids. You can replace "Cosby" with the name of one of the kids from the show, i.e. - "Dropping Off A Theo" to indicate a large dump, or "Dropping Off a Rudy" to indicate a smaller turd.
Goddamn man, pull the car over, I need to drop off some Cosbies.
by JohnsoroATL December 21, 2004
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When somebody tries to look up a friend on Facebook, only to find that they deleted their account without telling you, thus losing contact with them forever.
Mr. X: "Hey, I tried looking up John's profile but couldn't find it. Do you know what happened?"

Mrs. Y: "Yeah, he Dropped off the Facebook of the Earth."
by Dradisaulo August 1, 2012
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