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1.
When something smells bad
This Indian food smells like ass
by Diggler March 18, 2003
 
2.
1. Expression used when something smells unpleasant.

2. Expression used when something smells great.

3. "Smells Like A.S.S." - a new perfume lineup by Julia C.
(1) "This bubblegum smells like ass!"

(2) "Hey you smell really good; you smell like ass" "Yeah...I know"
by B/P/A February 08, 2011