butt masher 

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!

butt masher by O_oXD>_< July 31, 2005

buttmaster 

"buttmaster" is a new zealand slang term for someone that is considered to be very good at everything s/he tries. usually exceptionally good looking with chiseled features. a buttmaster is typically found inside a pub.

ben the polak is such a buttmaster that i've never seen him fail anything he has tried. he has chiseled good looks too.

man, you're a real buttmaster aren't you.

buttmaster by jimmy the thompson March 22, 2007