What is Goonhand?
1.
A firm grasp around the upper arm of a woman, often used in place of a slap in a public place. It is used to prevent a woman from "making a scene" in public. It involves four firm fingers around the arm on the medial aspect and one sure-gripped thumb on the lateral aspect. Shake vigorously if necessary.
"Bitch calm down or I'll break out the goonhand."
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2.
pimphand, heavy hand, hand you put down on an out of pocket bitch.
"I had to lay my goonhand down on Sheila. That bitch tried to get away with some shit the other night."
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3.
An unwanted wandering hand.
His goonhand was all over me. I told him, not until we're married.
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4.
The act of squeezing another person's hand very tightly when giving a handshake.
After shaking hands, turns to another, rubs hand, and says, "Damn, that dude totally gave me the goonhand!".