Top Definition
Nocturnal Penile Tumescence, or the uncomfortable feeling of waking up with an erection. The slang was adapted from Morning Sickness.
Hey dude, you got a mad morning thickness there. Cover yourself.
by Zandermuel December 03, 2007
6 Words related to morning thickness

Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.