I lost my crap-petite!
When one needs to take a crap extremely bad, however the person who was previously in the bathroom left a horrific smell so bad that said person losses their appetite to take a crap.
Brad- Hey Tom, I thought you were going to use the bathroom?
Tom- No, I was going to but the smell left in there was so bad I lost my crap-petite!
Tom- No, I was going to but the smell left in there was so bad I lost my crap-petite!