2
1) More severe than bull shit. 2) A way of expressing how wrong something is when no other word seems to fit. See also shananagins
Ron: Yeah, I just started dating karen.
John: AH! Bull semen! We fucking broke up 2 days ago!
by S3H September 19, 2008
Get the mug
Get a Bull Semen mug for your Facebook friend Zora.