1. adj. Foul smelling.
Sickening.
Unhygenic.
2. N. a pizza boy who is a real douche.
1. "Hey man. You see that girl. Her vag is pretty Backsmells!"

2. "Hey Backsmells, buy us Denny's or we won't be your friend."
by 30secondsoflove August 16, 2007
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