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Fart in tamil language. The gas one emits from one's butt.

Usage : Can be used to insult someone or make fun of someone.
1. Your kusu smells like rotten eggs.

2. Look at her butt. It is so big. Such a loud kusu must come out of it.
by kusu mayandi July 14, 2009
Kusu is a word used by the nubians to mean "Vagina"
Kusu taki hilu. (Your Vagina is sweet)
by Kultu March 24, 2011