by raunchy tits June 18, 2010

by A&V June 14, 2008

When ones penis is no longer erect, possibly either after blowing ones load, or just losing an erection. A semi-boner is often used for playfully slapping ones friends in the face while they sleep for a hilariously good time.
by BLICK12 May 4, 2006

by jimbo4444 July 25, 2012

Man, I was messing around with this girl the other night, and for some reason, I thought of the time I saw these two bums fucking in a dumpster and the Boner Poison hit...
by CEGB December 22, 2009

by muteaid November 28, 2003

by Saucy_Jack June 24, 2009
