A sex act that occurs during fellatio when you are about to cum and give her a facial while throwing a fireball at her face.
My girl came back from the beauty salon looking like Ronnie Garvin, so later that night I hit her with a cosmic fireball.

My boyfriend, an old school territory 'rasslin fan, hit me with the ol' cosmic fireball this afternoon - now my face smells like jizz and burn salve.

Credit goes to Booking the Territory.
by The Ether Bunny September 23, 2018
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When you're about to ejaculate, you pull out and hold a lighter up to your dick. When you finally nut, scream FIRE STYLE; FIREBALL JUTSU and when the cum comes out it will be lit ablaze as it leaves your now burning dick.
Dude, last night I was doing it with Rebecca and to finish it all off, I performed the Fireball Jutsu1
by Dongus504 May 08, 2019
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a way to excuse your drunken behavior. related to the consumption of fireball whiskey.
ex: sorry i fell into your grill and ruined the barbecue, i was fireballed up
by claire.bear March 18, 2014
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The act of pouring cheap tequila on your nuts and lighting them ablaze whilst tea-bagging your date. Very pleasurable for all those involved.
Nick: Dude, this weekend I totally performed Mexican Fireballs on some chick. We had to go to the E.R. after.
Aaron: You sick fuck.......
by BigBossHog69 October 03, 2010
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