Top definition
When you have gas and can't let it out...usually due to the fact that you are in a public place...the fart then goes back into your stomach rather than out your anus - most often resulting in an awkward noise.
Man I was in class today and I had to fart, but there was this hot chick sitting next to me so I had to inside fart instead. Turns out it was so quiet she heard it anyway and gave me a disgusted look.
by phil-will March 21, 2010
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