adj 1. full of people. Typically used to refer to a party, a dance club (disco,) etc. Usually pronounced "bumpin." ("That party was bumping!") 2. good. ("That pie is bumping.") Submitted by Anthony, Hazlet, NJ, USA, 06-12-2002.
BUMPING
Meaning of BUMPING in English
Slang English vocab. Английский сленговый словарь. 2012