(firm-a-tiv-ity)
: the level of firm; not weak; having a solid or compact structure
usually referenced to the firm level of a woman's ass or breasts.
One may judge the firmativity of an ass or breasts by firmly grabbing a palmful, then grasping and/or coressing the subjects goods, then judging by curves, proportion, and perkiness..will result in the determination of the Firmativity.

"So me and this girl were going at it and i reached down and grabbed her ass..i couldn't get over the firmativity of her ass..it was breathtaking."

Firmativity by Kosmilly May 2, 2009

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firminho

Usually people who say "Firminho" were dropped at birth on their head, and shouldn't be allowed to watch football

Person 1: Hey did you see Firminho's goal?

Person 2: Were you dropped at birth on your head? You shouldn't be allowed to watch football.

firminho by ComptonMane March 8, 2018

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firmatic zunz

A Vallejo asain gang, that is affilated with AzN03. It does street races, gambeling, drug dealings, and family.

Them firmatic zunz dont play.

firmatic zunz by AzN playa November 14, 2004

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the filthy firmino

When a brazilian man with extraordinarily white teeth, engages in aggressive anal sex and then empty’s a frube into the second anal cavity

Barry! Your mother and I worked on the filthy firmino! 10/10 dude!

the filthy firmino by XxxMax_NormanxxX May 27, 2019

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