The disposal of morning wood through the act of masturbating.
Guy: After the dream I had this morning, I had some lumberjacking off to do...
by JJtheSeme August 12, 2010
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When you grow out your pubes until they resemble a beard, the you masturbate with syrup.
-"Hey man, wanna go get some flapjacks?"
-"Not right now, I'd rather go Lumberjack off."
-"Alright, just make sure you wash your balls when you're done."
by Lumberjacket August 16, 2009
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A sexual act in which a man masturbates (or is stimulated by his partner) and after he's ejaculated, his partner yells "TIMBER" as he loses his erection.
"I made a huge mess from lumberjacking off. Plus I think my roommates think we're logging."
by Paul Cumyan December 5, 2017
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