When a guy takes a shit in another guys mouth. Usually performed by homosexual males but others can perform this sexual act too.
Jake: "Yeah honestly I was surprised when Chad asked me to give him a boom boom but I am down for anything."
Jeff: "That's GNARLY man!!!"
Jeff: "That's GNARLY man!!!"
by beefysteak July 10, 2020
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Most of the men in the NFL have nice, hard boom-booms you can seen when they bend over in the huddles in those tight pants they wear, said my sister.
by JonJon_One April 11, 2017
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why you boom boom in our yard
by buttholebutthole October 21, 2019
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