When a girl rubs the crotch of her boyfriend/husband/etc. or herself in the manner that's similar to scratching a turntable.
by Johnnyvegas2000 July 2, 2008

The ground level room(s) of a split-level house. Not to be confused with the actual below-grade basement.
by MCJR March 23, 2012

Dangerous condition that often brings about toxic mold, foundation damage and a host of additional problems.
by Adam Weatherby October 7, 2007

Severlal forms of mold are known to grow in a damp wet basement. Mold can sicken your family and pets.
by Paul Thornton November 27, 2007

Basement cracks are the #1 structural problem in the home today. The crack must be diagnosed by a professional to get to the root cause of the cracking. A crack can be harmless settlement of the home or building or could be serious and pressure realated.
by Peter Perlman October 8, 2007

by Paul Thornton November 27, 2007

when you are trying to make some sort of contact with another person and they dont answer your phone calls or texts, and you haven't seen them in like three days. They are presumed to be in their basement masturbating.
"dude i haven't seen jordan in like three days"
"yeah man, me neither"
"should we install the basement theory?"
"install it bro."
"yeah man, me neither"
"should we install the basement theory?"
"install it bro."
by paul read May 10, 2009
