2 definitions by burfus man

An intense puckering of the anus, creating soreness and pain. Typical cause is from sitting on a bicycle seat too long.
After the bike ride I was suffering from an acute case of anusitis, making it hard for me to sit.
by burfus man July 16, 2021
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Sometimes called a fart. But a burfus is more like an anal explosion, much louder and longer than a typical fart
I just let loose of the biggest burfus ever. Wow does it stink.
by burfus man July 13, 2021
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