a lumberjack is a person who wears all plaid, every single day of their life. lumberjacks can be either antisocial or popular, and they are usually male. however, rare female lumberjacks have been spotted on occasion.

this strange group of people is a very rare subset of what is now called a hipster... the lumberjack makes being a hipster look nerdier than ever through their overuse of the plaid pattern and other hipster elements.

is you happen to meet a lumberjack, don't scare him or her off! you may never see one again!
it looks just like all your other plaid shirts... how am i supposed to tell which one it is? you're such a lumberjack!
by i_don't_owe_you_a_thing February 3, 2011
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The act of masturbating whilst watching someone else take a shit, or the act of taking a shit whilst someone watching masturbates
Man, my wife is a dirty bitch - we did some serious lumberjacking last night! She squatted over a glass coffee table & took a shit while I was underneath, masturbating furiously!!
by Jack Shit II April 1, 2007
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When someone prevents you from getting an erection, or does something that completely turns you off.

Just like a lumberjack cuts down a huge tree, it can be compared to someone killing your wood

Similar to a cock-block but worse; it could ruin several moments instead of just one.
Bro1: " Dude, last night my roommate walked in on my girlfriend and I making out. The date was ruined and now my girlfriend is afraid of my roommate walking in on us."

Bro 2: "What a lumberjack!!!!"
by MonotoneJoe November 25, 2010
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Whilst Double Penetrating a girl, The dick in the ass goes in as the dick in the pussy comes out. Like the old school saws that the lumberjacks used back in the day.
Dude, last night, me and my homeboy were totally lumberjacking that bitch. We had her screaming everything with our perfect form!
by Spcmmr January 3, 2011
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The act of taking a dump in the woods while yelling TIMBER!!! you should always dig a hole first so not to disturb the animals habitat.
Everytime I am in the woods and I have to do The Lumberjack...i always dig a hole first because I am a professional and I respect the animals.
by iwantbabylalaloopsy January 8, 2012
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When you are in the process of tea bagging someone, you pause for a moment with the balls resting on the face. You then hold the penis (still soft works best) up in the air and yell "Timber!" Then proceed to let shaft fall onto the persons face, preferably with a distinct smacking sound. For additional amusement, perform this while executing the ballnoculars, or the Gonzo.
My girlfriend was already angry with me last night, so I figured I may as well tea bag her with a couple of lumberjacks thrown in for good measure.
by helpy helperton February 17, 2012
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