"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.
ok, stephany is more or less correct....BUTTBUSTER is a gay guy with a large cock that likes to fuck other guys and leave them wanting more, butt it is also my handle and has been for 50 years, just because I like to fuck other guys and leave them wanting more...
Hey Jerry.......want me to open your ass for some big fun? I want to be your buttbuster.....