1 definition by O_oXD>_<
Someone that butseckses with fist. Butt mash (Verb) To Mash the asshole with extreme force. To make ass like goatse. O_o
Guy 1: Dude he butt mashed him to goatse lvl.OMFG!!!!!1111!!!!1111one1!!!!!!!111
Guy 2: No fucking way HAX. He was Butt mashed that bad???WTF
Butt Mashed guy: It wasnt that bad!!!
Guy 1: He liked it what a fag!
Guy 2: No fucking way HAX. He was Butt mashed that bad???WTF
Butt Mashed guy: It wasnt that bad!!!
Guy 1: He liked it what a fag!
by O_oXD>_< July 13, 2005