When you do a handstand with a lighter in your butthole while having an aerosol can spraying towards the lighter.
Dude hold my beer I'm gonna do a down south blowtorch to light the bonfire yee yee.
by darkoathangel May 18, 2020
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When the oral bottom is "blowing" the top's genitalia while scratching his/her (the oral top's) anus, causing a burning sensation, hence the "torch" portion of the word, along with oral stimulation.
"Oh god, Chris just gave me the best blowtorch, but I think I'm bleeding from the wrong hole."
by DrakkyChan July 29, 2014
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To cover her back with cum as she is curled in a ball on the ground hiding her head and limbs.
I really want Jimmy and his friends to blowtorch my turtle after we are done with the gang bang.
by GoldenDragonaire August 13, 2017
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