look up any word, like bukkake:
 
2.
Mixing warm water with cum, resulting in a coagulated mass that resembles crumbs.
Look! I made cumcrumbs in the shower!
by Laroo July 03, 2013
 
1.
Dried, crusted semen that has flaked off into smaller pieces.
The sheets in the hotel room were littered with cum crumbs.
by The Captain Awesome October 10, 2007