When one guy fucks 2 people of the same family tree. Such as 2 sister's or 2 cousins or any combination people related to each other.
"Dude, I fucked Sara and her sister Courtney"
"I can't believe you are lumberjacking that family tree!"
"I can't believe you are lumberjacking that family tree!"
by Eskimo brothers June 3, 2017

While a woman is tounging/licking your balls, you lift your cock up. While she continues to suck your balls, shout ''TIMBER!!!'' as you simultaneously let go of your cock and hit her in the face and forehead with your cock. Asians will have a harder time accomplishing this, and may have to shout ''TWIG!!'' or ''STUMP!!!'' instead.
Last night I gave Lisa a Lumberjack when she was licking my balls. She STILL has a red mark on her forehead from my cock!!
by Burt Hymen & the Fallopian Two September 28, 2011

"Lets lumberjack this bitch."
by popov boner March 10, 2008

Someone (a girl) who is so utterly unattractive that she cuts your wood, meaning she makes your penis un-erect from her disgusting physical appearance like a lumberjack cutting up wood.
Dude so I was at this bar the other day, getting a boner from staring at this girl's ass, until she turned around! She was so ugly, made by boner go away - she was a lumberjack cutting my wood away!
by Spying_Fuzzball November 18, 2011

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.
by Paul Cumyan December 5, 2017

"The Lumberjack Strangler" the act where seated you masterbates your trapped cock between the toilet and the toilet seat, while dropping off fresh logs. At the hight of climax you shout timber and dust off the logs with a white snowy frosting of cum.
by Maverick 007 February 8, 2025

When you run into a Halloween party with a pre determined person and grab a bottle of pink Whitney. Then you smash it like an axe on their head and yell, “lumberjack!”. Then you sprint out the house screaming.
by Billyyyyymple8292 June 12, 2024
