1. Violent aliens from the various Star Trek TV shows.
2. Nerds who think they are violent aliens.
3. Poo stuck to your ass hair; dingleberries.
Q: how is the starship Enterprise like a piece of toilet paper?
A: they both circle Uranus looking for Klingons.
by Dr. Literate August 6, 2006
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An honorable and warlike race, the Klingons have kicked the Romulans asses from time to time and have a language full of pwnage, otherwise known as tlhIngan Hol. The flagship of the Klingon fleet is the Negh'Var class battleship IKS QeyIIS betleH, commanded by Chancellor Martok. Get laid a LOT more than Romulans.
The Klingon wrenched his y d'k tagh out of the Romulan.
by Captain Tereth May 27, 2005
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A guy or girl that expresses too much interest in wanting to date and or get with you. This usually occurs when a general friendship is formed but the individual does not understand the term "just friends" . A clingy individual.
I hung out with this guy from work one time, now he is blowing up my phone and being a major klingon.
by Vanity Valentine July 5, 2011
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Person or persons who only hang with you for what benefits it provides them. Booze, drugs, connections etc.
"Dude, you cannot possibly be shocked to learn that she's a Klingon!"
by TruthseekerNJ January 31, 2009
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...A language full of pwnage that the trekkies are very fond of. I myself am a trekkie. (therefore i pwn j00.)
When you come across a trekkie, interrupt their starbabble immediately with, "Hab SoSlI' Quch!"

Or be cool like me and costantly shout out,"nuqDaq 'oH puchpa''e'!?" at random.
by wysiwyg January 9, 2004
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a girlfriend that clings on to her boyfriend way too much and doesn't give him any time to himself.
antwan: yo my bitch won't get off my D!
tyrese: you needs to kick that klingon to the curb.
by jaeill April 8, 2004
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1. Violent aliens from the various Star Trek TV shows.
2. Nerds who think they are violent aliens.
3. Poo stuck to your ass hair; dingleberries.
Q: how is the starship Enterprise like a piece of toilet paper?
A: they both circle Uranus looking for Klingons.
by Dr. Literate August 6, 2006
Get the klingon mug.