A very lazy guy who falls asleep at the slightest availability of comfortable seating position.
" Omar is a slumberjack. He falls asleep as soon as he hits the couch......."
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 "
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!
The act of involuntarily masturbating in one's sleep.
Stuart's wife was delighted to find her husband slumberjacking in his hospital bed. Stuart was involved in a horrific traffic accident some months ago and has been in a coma since. And now, what initially disturbed her deeply in their honeymoon bed, gave her hope.
Ejaculating in the middle of the night to relax yourself and bring on sleep.
I was wide awake untill I slumberjacked
To receive oral or manual stimulation while sleeping.
I was in the middle of a pleasant dream, when all of a sudden I awoke to find I was getting slumberjacked.
Friend 1: Dude, how many times have you jacked it today?
Friend 2: Three, not including my upcoming slumber-jack
Friend 1: I am so wired, I'll never fall asleep tonight
Friend 2: Bro, I have the perfect solution for you! Treat yourself to a slumber-jack, it never fails me