Because a man is very sensitive after an orgasm, he is very sensitive on his head. So when a woman tries to rub his cock with a dry hand, the man has to try very "hard" to not slap the woman for rubbing his "hat". So The Hard Hat is created.
After my woman whacked me off, she kept trying to find more, but my hat was too sensitive, and I tried very hard not to slap that hoe. The Hard Hat I got last night was gruesome.
by Teh Dr. Evil August 21, 2006
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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 21, 2005
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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 April 1, 2006
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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 5, 2011
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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 3, 2006
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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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Placing an erect penis on top of a women’s head. Hence giving her a hard hat.
Now sit still so I can give you a hard hat
by SapphireSkyz July 2, 2018
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