cari istilah yang lo mau, kaya' blumpkin:
 
1.
some one who wants to have bum sex with another
friend one. you coming out for a beer 2 nite mate
friend two. yea man, but dont try playin any of your bum tricks on me, when we are pissed !
friend one. hahahahahahahaahaha
friend two. you dirty bummer
dari matt+smiyh Minggu, 27 Januari 2008
 
2.
The art of using ones bum in a sexual manner to lure another person.
I love the way you perform those bumtricks. I think I live you.
dari Johnny Wishbone Kamis, 03 Februari 2005