This is when you are completely aware of whats going on, and all of a sudden, you slump over in a fit of sleep. It lasts a long time, and can last through any amount of noise, pushing and shoving, or moving.

Definition 2:
Falling asleep while smoking a cigarette.
Falling asleep while drinking a beer
Falling asleep mid chew
Falling asleep while driving
Falling asleep in the middle of a smoking circle
Falling asleep mid game (cards, video games, etc)
"dude, pick up the cigarette off his chest, he's gonna light his chest hair on fire. he's totally pulling a mayo right now."
by Notorious ABD June 10, 2009
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