Top Definition
Derived from the slang term "the itis", which refers to the uncontrollable tendency to fall asleep after having a big meal.

Bust-a-nut-itis is the overwhelming urge men experience to fall sleep after having sex or busting a nut.
Wally: " when I woke up, that hoe had taken everything, my iPod, my Blackberry, credit cards..."

Buddy: "Sounds like a serious case of bust-a-nut-itis.."

" I had bust-a-nut-itis so my mom found me passed out in front of my PC with big booties on the screen, my pants around my ankles and lotion everywhere.. "
by Shocker Zulu August 17, 2011
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