(frum-un-do cheese)

Pasty, dense substance found under sack in taint area, leg crack, and seldomly in ass crack. Can most commonly be found after long sweaty days of work and in those who do not bathe regularly.
Smell can be described by one or all of 4 things,
1. Shit
2. Rotten Pussy
3. Carcus
4. Pure Nasty