covertly coating ones tongue and then perfoming a rim job on the unknowing victim.
Shawn: So, I heard that paul got revenge on his girl.

Dave: How did he do that?

Shawn: He got her with a Volcanic rim job.

Dave: That's disgusting!!
by Dirty roomie February 24, 2009
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When a person chews up the hottest pepper they can find. (ghost, habenero, jalapono,etc..) then proceeds to give a rim job.

*To add lava simply spit out chewed up pepper into other persons rectum.
Jenny bent over and pulled down her panties so Billy could give her a volcanic rim, she was nervous it was going to hurt
by orsassypants June 9, 2014
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