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The female participant is laying completely nude, face down, and is handcuffed to each of the four bed posts.
The male stands nude on the bed located between the females feet with a full erection. He raises his hands and shimmies his fingers about(Representing tree limbs and leaves) and Shouts, "TIMBER!" After shouting, he falls(belly flop style) face first into the back of the female firmly planting his fallace into the females anal canal. This maneuver is done with the female laying face down to heighten the level of surprise. Attempt at your own risk! This can leave your man parts in tatters if done incorrectly.

This maneuver was invented while dining at Dennie's and tested later that evening.
I gave Astronut one wicked Lumberjack Slam! That kid won't be walking for a month!
by Sasquatch Alpha and ColBeck April 27, 2005
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When a male is having sex with a female from behind and right before he is about to cum, he kicks out her legs from under her and yells, "Timber!" and then precedes to cum on her while she's on the floor.
"1: Man, yesterday Trevor really gave that bitch the ol' Lumberjack Slam."
by Minjae'sHouseofPorn November 18, 2009
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When a man is having sex with a women from behind, and swings an axe into the back of women's head right before an orgasm.
"I'm going to go home and give my wife a Lumberjack Slam, then throw her body into a trash can."
by Chim Ridgles March 20, 2007
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The act of having sex high up in the branches of a tree.
I couldnt get Emily back to my dorm lastnight, but we stopped in the park and I gave her the ole lumberjack slam.
by Daddy Ruxpin November 08, 2010
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In the standing 69 position, in the midst of passionate lovemaking, the man screams "TTTTTIIIIMMMMMMBBBBEERRRRRR!!!!" and jumps down a staircase in the pile-driver positon. It is advised that the man removes his penis from the woman's mouth prior to commencing said act.
My girlfriend's in a wheelchair for the next three years because of a violent Lumberjack Slam I unleashed on her three weeks ago. Freaking EXTTREEEEMMMEEE
by A-seven September 20, 2009
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When one, presumably a male, is recieving a blow job from another person, presumably a female, and at the point of ejaculation, pulls out, and yells "TIMBER!" as the splooge lands on her face.

Namesake: the delicious Denny's breakfast special.
Jack gave Doug the best Lumberjack Slam since his stint in prison!
by titties August 26, 2004
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when your doing a girl doggy style and you take an axe and yell timber and slice her back open... the you take your special "syrup" and put it in the cut.
lumber jack slam
by matt nick john danny chris September 14, 2008
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