Someone who falls asleep wearing flannel (shirts, pajamas, etc.) or uses a flannel blanket.
Melvin: Can you stop slumberjacking already, Johan? We gotta be at the bus station in 10 minutes!
13π 5π
A lumberjack who passed out from lack of sleep and killed himself with his own chainsaw
" Joey was a lumberjack few days ago. Now he is a slumberjack "
32π 25π
The act of dozing off while masturbating, or jerking off while asleep.
βMy boyfriendβs great at slumberjacking, he really knows how to handle wood while he saws logs.β
2π 2π
Felling trees while half a sleep
I was up at 5am slumberjacking
1π 2π
The act of masturbating onto a sleeping person.
"She drank too much and passed out early so I slumberjacked her."
1π 3π
The event in which all guest at a slumber party are male. Usually when the significant other is out of town and the guys just wann have fun but are at the age where partying all night is just too much.
We were going to go to a stripclub but ended up staying in and having a slumberjack party with the guys. Wine, cigars, football, and blanket forts.
Masturbating a predefined sleeping apparatus, such as a bed, sleeping bag, or hammock. Often with the intention of passing the fuck out after.
I can't go tonight bro, gonna hit the hay, maybe do some slumberjacking first.