(v.) To gird ones loins. Nutting up entails using one's proverbial balls or "nuts". Mainly used on the US west coast, it's the sister (brother?) term to cowboy up.
I better nut up or I'm gonna get my ass kicked in this fight.
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Verb phrase: To involve oneself in a physical altercation, to lose one's cool, or to fly off the handle. A common fixture of urban or "gangsta" vernacular. Recently popularized by a homophobic, black-clad drug-dealing NPC/pedestrian in the controversial PS2 game "Grand Theft Auto: San Andreas."
"Yo, I'm fidd'nduh nut up in a minute!!!"
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To suddenly go crazy with no apparent provocation. Especially true with emotional issues that have not been previously resolved but avoided.
"I was talking about waiting another year to get married, and she began to nut up on me."
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Losing one's ability to control excitement.
My dog is nutting up because I just got home.
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Freaked out. Stressed. Going a little crazy
I am sooo nutted up about this interview.
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v. To ejaculate. Literally, when one's testis climb to a "high & tight" position just before launch.
Al was about to nut up when her cell phone rang, turning his hard tool into a soft accessory.
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