It happens after a person has masterbated. Mainly happens with guys. The person goes to sleep and wakes up late. Typically if your going to take a nap after masterbating you wont wake up for several hours. They will fall asleep and sleep longer than intended. But of course its a great sleep. Thus the Masterbation Coma.
When a guy who always denied ever jacking off first proclaims to their friends that they indeed do masterbate. Usually admitted after days, months and years of questioning and teasing.
Krieg- "You missed it last night. Brett finally caved."
Just after you nut where you go
"Wow this girl I just jacked off to is real nasty." Or where you loose complete sexual interest after you bust.
You- Fuck me this chick is sucking that dick so good.
You post nut- Man wtf this chick is nasty and the concept of porn is fucked up, I mean I'm getting off to someone getting off wtf man I just had a
"Masterbation Realization".
A Hole in a pair of pants or shorts that is located in the crotch reigon. This can be applied to both males and females, but mostly found in lazy males.