September 19, 2011 Urban Word of the Day
The act - either planned or unplanned - of falling to sleep after masturbating.
I was just going to rub one out, but I ended up masternapping for an hour.
Bob's been away from his wife for two days, so he went upstairs for a masternap.
Where somebody goes and masturbates, then quickly falls asleep.
"gotta go masternap"
"*Fap Fap Fap Fap*
When a male/female masturbates before bed, in an attempt to fall asleep during orgasm. Masturbation + Nap= Maternap
Timmy: jeez man you were out like a flash last night...?
Billy: yeah bro, had a cheeky masternap and fell right asleep
Timmy: aww man WTF thats sick
Billy: dont lie....we have all done it