Top Definition
A type of gun trigger that requires a very small amount of pressure to respond.

Also can be defined as someone with a very short temper
"That .357 has a hair trigger"
by Deepfizzle April 05, 2006

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A lack of endurance during sexual activity.
Friend 1: Where's Sara?
Friend 2: She's in Nate's room
Friend 1: Oh, she won't be long. That boy's got a hair trigger
by GHB June 21, 2006

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clitoris
when I hit her hair trigger, she went off immediately
by otisb June 07, 2010

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

Smooth, soft, slim fit American Apparel shirt. Custom printed. 100% fine jersey cotton, except for heather grey (90% cotton).

Buy the t-shirt