Top Definition
A word made up by Planet Fitness used to describe one who grunts, drops weights, and judges. At planet fitness there is a lunk alarm that will go off if they believe you to be a lunk.
Ryan is slamming his weights wearing a body building tank top and drinking out of a gallon water jug, what a fuckin lunk!
by Jack Mann March 06, 2008

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Photos & Videos
The root word in the more commonly known term: Lunkhead. A word used to describe someone of low intelligence and usually of a portly stature. see dullard or dolt A heavy, stupid fellow.
Can you believe that? That stupid lunk just cut me off!

Look at that lunk, he dripped ketchup all over his fat gut when he was eating his hamburger.
by Ian Callahan May 29, 2006

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To lay around in a energy-efficient (see lazy) state.
I think I am going to lunk around the house today.
by unlimitedhp August 09, 2006

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When going up for a dunk and the ball slips out of your hands or you misjudge the jump and it ends up bouncing around sloppily before going in. Derived in 2006 in Muscatine, Iowa by combining layup and dunk.
Kobe went to throw down but couldn't finish and ended up lunking it instead. Garrett can't dunk but lunks like a champion.
by MuskieNation December 24, 2014

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Lightly drunk and high but not quite drigh
He was lunk after the party
by The third wheel # 3 October 12, 2016

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Noun: A internet "link" that does not work to specification. Specifically if video and or sound is inoperable and henceforth ruins the masterpiece that is a short clip of a cat falling off of a table while Alicia Keys plays triumphantly in the background. A noise most accurately described as lunk is generally heard either in the distance over the left shoulder, or in the third eye region of the brain between the eyebrows and 1.5" behind the skull, as the viewer realizes that the link they were sent does not work.
You sent me a lunk! That youtube video of the epic finale of Pitch Perfect 2 had no sound! Send me a link please.
by Boberino May 12, 2016

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Is used to describe a person or object that represents low demeanor or value. It can also be used to describe an unidentifyable object.
Goddamn that guy drives a Lunk car;
What the hell are you eating!? it looks like a Lunk or something!
by james August 11, 2004

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The Urban Dictionary T-Shirt

Soft and offensive. Just like you.

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The Urban Dictionary T-Shirt

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