You have your woman get on all fours and try to shove your balls in her ass.  They keeping popping out like a dog in a bathtub.
by tennrattler February 28, 2003
 Get the Dogs In The Bathtubmug.
Get the Dogs In The Bathtubmug. attempting to fit both your balls and cock inside of a womans vagina. it is called this because it is harder than trying to keep a dog in a bathtub.
by carrionshine211 May 22, 2008
 Get the a dog in a bathtubmug.
Get the a dog in a bathtubmug. Man, when I was doing Suzy last night I tried to put my ballzack into her brownstar, it was like trying to keep a dog in a bathtub.
by Scud August 20, 2004
 Get the dog in the bathtubmug.
Get the dog in the bathtubmug. by Anonymous April 25, 2003
 Get the dog in the bathtubmug.
Get the dog in the bathtubmug. This is the proper name for when you attempt to insert your nuts into a girl's ass. It is so named this because it can be just as hard as keeping a dog in the tub while giving it a bath.
by CharlesVA August 5, 2006
 Get the Dog in a Bathtubmug.
Get the Dog in a Bathtubmug. by Anonymous February 25, 2003
 Get the dog in the bathtubmug.
Get the dog in the bathtubmug. by pooteck May 22, 2003
 Get the dog in the bathtubmug.
Get the dog in the bathtubmug.