This is the name given to thin transparent tracing paper used by architects, engineers and others, mostly for sketching and overlaying.
I overlaid the lighting plan with a piece of bumwad and sketched on the lighting fixtures. Then I overlaid this on the ductwork drawing and saw where interferences occurred.
by L.J.Moore June 11, 2008
by Anonymous May 19, 2003
Hey, there's no bumwad in the crapper!
by Bumkicker Slade May 10, 2005
A wad of cum that has been ejaculated into the bum of a sex partner. Usually, but not always, male-male.
by Gerald Fitzpatrick Patrick Fitzgerald February 7, 2004