Someone who is sleep deprived but will willingly stay up
"My friend is always tired, but he won't go to bed. He's basically an insomniac"
by Definitely not Tifa March 23, 2021
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A move where a person must stay awake for multiple days, and then fucks his companion, trying to stay awake long enough to pull out.
I tried the horny insomniac with my wife, but I failed and now shes pregnant.
by Dongle dude 666 May 14, 2018
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