It means Chuckle. Used when you don't acually laugh out loud. It's more so a suble laugh.
Sam: Did you hear about the new blonde paint?.............It's not real bright, but its cheap, and spreads easy.

Jane: ckl
by Amandi June 29, 2005
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"ckl, that's sort of funny"
"ckl, thanks for the compliment"
by MosquitoPirate March 23, 2019
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"cackle" - Created as an alternative to the oft exploited "lol", it's used as a brief acronym to denote great amusement in chat conversations.
My dog just ate the neighbor's hamster ckl...
by One Maikru December 2, 2010
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A person, usually male who goes in a transformation from a no-life, video-gaming homosexual into a normal human being.
Man : I'm so CKL..
Woman : Yes you are.
by A LIVING CKL August 13, 2008
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