When your bank/credit union/etc. charges you for not having enough money in your account. Named for the famous bit by stand-up comedian Louis CK.
"I ran into the CK Paradox today, after I paid my rent"
by NoMoney July 13, 2012
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CK Stars is a kid who does YouTube. He is known for lying and exposing people. This kid will drive you insane and you will hope you never found him in the first place.
Person 1: Hey is that ck stars?
Person 2: Yeah.
Person 1: Oh fuck lets get outta here.
by ZenexRL April 15, 2020
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The act of male masturbation in the presence of a woman (this is not restricted to physical presence. A voice on the end of a phone line will suffice). This act is frequently initiated by asking the woman's permission but performed whether consent is granted or not.
Oh My God! I met up with a guy from Tinder last night. He totally Louis CK'd me!
Really? What happened??
He asked if he could jack off in front of me. I said "fuck no". But when I came back from the bathroom later he was totally spanking his monkey.
Did you leave?
No!
by Willimus November 14, 2017
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a sexually agressive bisexual 'hipster'.

(From Robert Lanham's "The Hipster Handbook")
There were a couple of CK-1's at the club last night.. totally wanted my bod.
by DR. DEL ONE January 23, 2008
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