Top definition
1. a steel or plastic helmet worn to protect one's head from falling objects or debris.

2. a worker who wears a hard hat.
A hard hat is one tool that saves lives.
by Light Joker August 20, 2005
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2
a helmet that people who work on construction sites wear, so shit doesnt fall on their head and kill them.
Mark: Holy shit Steve! Look out!
*Steve gets owned in the head by a brick*
Mark: Damn son, shoulda had your hard hat on!
by Kast March 31, 2006
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3
A thing that protects your head.
I wear a hardhat when i watch tv.
by Dee July 24, 2004
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4
To tuck your erection in the waistline of your pants in order to protect yourself from the embarrassment of a public boner.
John: Why is Joey walking so weird?
Jimmy: Because he's definitely Hard-Hating it right now!
by Dean0530 November 05, 2011
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The vengeful act of crapping on a lover's chest while they sleep.

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5
A comdom or anything that protects against pregnancy
Let's go baby I got my hard hat on and ready to beat them guts
by corey hockenberry October 02, 2006
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6
Hard hat is a slang synonym for an erect penis.
For example "Honey i got a hard hat are you ready"
Or "hmmm this porn cause's meglo hard hat syndrome"
by Chris Woodruff August 18, 2006
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The vengeful act of crapping on a lover's chest while they sleep.

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7
V: when a blowjob is given while on a portapotty
After a long day on the job, Hickory Hank recieved a hardhat.
by barbara b March 15, 2005
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