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A sex act wherein a solution of spicy hot sauces or ginger paste is injected up a man's urethra. He is then brought to orgasm, producing the flamethrower.
Julie: Oh, man last night the guy I was with did the most painful thing! He injected sriracha up his urethra then came all over my face!
Jenny: Yeah thats called the flamethrower. My ex liked to surprise me with that all the time.
by halicon5 July 12, 2014
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