An extremely large amount of something (usually sexual) that needs its own unit of measure.
Harold:" How many black guys have you banged Marcia?"
Marcia: " A Geometric Fuckton."
by DatBoiR3MY June 12, 2017
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The amount of fucks you give when your girl leaves you, and takes the dog, truck, credit cards, and house keys, with her.

Good luck getting out of that one, buddy. Better hope you’re still on yo mama’s good side...
You: You know what, take yo money, i don’t need it. I don’t give a fuck anymore.

Your crazy ass gf: you will in a minute. You’ll care a whole ass geometric fuckton. Yk what, gimme my credit cards. Yea, the debit too. And while we’re at it, I want my keys back- to the house AND the car.
by The_UnlovedOne August 3, 2019
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