1 definition by Otakusdomain

The apex of sleepiness, that moment when your eyes droop. They can be sustained for long periods, but they also have the tendency to last for mere seconds before you snap awake or fall asleep in an instant.

Beware the sleepgasm, It is not choosey about its victims.
Oh god damn it, I'm sleepgasming! I'm sleeping all over the place!

Man 1: Dude, why'd you stop talking last night?
Man 2: Sorry man, I totally sleepgasmed

Oh man, I'm about to have a huge sleepgasm..
by Otakusdomain January 26, 2011
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