when a man is fat as fuck and the 2 or 3 chins he should have form into a "fumpa" where his neck should be. it is also known to occur in women, but is less common.
by dingleberry stew October 29, 2010
A fat ass boy/girl; an ignorant name for someone you don't like very much.
That girl is a chumpa. Look at her rolls.
by Michele Thomas December 15, 2007