The check engine light on a vehicle. It is referred to as a money light since a vehicle with this light illuminated will not pass state inspection until the problem causing the light is fixed; naturally costing the vehicle owner money.
I just spent $300 at the mechanic but that damn money light is still on!
Make sure you thoroughly wipe your fundament opening to avoid getting dingleberries.
Acronym for "smell my anal vapor," a saying infamously coined by El Duce of the Mentors. Can be used as a verb to describe the act of smelling ones anal vapor.
Example 1:
Neil: Damnit Bob! I know it was you who bombed the toilet!
Bob: SMAV
Example 2:
While giving my wife some head she farted; therefore I smaved her.