double barreled slingshot 

Humorous reference to a brassiere.

Damn, Frank shagged some fat chick from the party. He almost got away with it, but his folks found her double barreled slingshot under the couch.

double barreled slingshot by Frank Klaune March 29, 2005

double barreled slingshot 

a brassier (jocular, from the shape)

Whoever hung that double barreled slingshot out here must be fat. Talk about streched out.

double barreled slingshot by Light Joker December 10, 2006