cari istilah yang lo mau, kaya' cunt:
 
1.
When one wobbles one's belly to the tune of a dubstep track, be it an actual track or an impromptu acapella version.
"Let's play some tumstep!" *grabs belly* " Wob wob wob wob wob*
dari MC Tumstep Selasa, 08 Maret 2011