It means to go to the bathroom to take a piss or to take a shit.
I'm gonna go hit the head. I should be back in about three minutes.
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Pissing, urination, the act of excreting liquid waste in males
"I was just hitting the head."
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For a girl to give a man oral/head.
Steve-Yo that girl over there is a freak.
Terrance-Yo do she hit the head.
Steve-Yup
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Another Way To Say "Suck my dick" Without saying "Suck My Dick" Populated By Streamer: Lil Morro
aye hit my head lil bruh
A fake, phoney-bologna totally fictional jingle one might sing when they have to use the toilet or urinal.
{Sung to the tune of the nursery rhyme, "The Farmer in the Dell"}:
โซ I need to hit the head, โซ
โซ I need to hit the head, โซ
โซ Don't piss in the stereo โซ
โซ I need to hit the head! โซ
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