To cum in a girl's ass. Originally a meteorological term, meaning in a supercell thunderstorm, an area of dry air that wraps around the back end of a mesocyclone.
Guy 1: Boy, I sure like that girl Brandi! I'd like to give her a rear flank downdraft.

Guy 2: Ya me too man.
by 212crank530 January 1, 2011
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Having Sexaul intercorse on a roof
I was balls deep on my roof, I Spanish flanked that hoe!
by AndrewSharp January 21, 2019
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must be exclaimed prior to proceeding in a three-point shot from the left corner of the basketball court.

Left flank refers to the position of the shot taken

Lamb shank refers to the food that is redeemable after the left flank is taken
Watch me hit this left flanks and lamb shanks
by rosspapadakis June 20, 2019
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when you slip your finger in your girls butt hole at the movies.
"I finger flanked my girls at the movies my dude"
by john222222 March 22, 2014
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What Squidward made SpongeBob say while Jogging in place in Season One Episode 11 in SpongeBob
Squidward made me say flank steak while Jogging
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That fat girl must be over 400 pounds---get a look at that flank steak!
by pentozali July 9, 2013
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