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Welsh word meaning wanker (tosser, Jerk, fucker etc).

However, has been known to be used as a greeting phrase and in other useful situations for NON welsh speaking people.

Has also been known to great people you know Very well, such as housemates or siblings.
"Kneekh on you"

"When Steve stubbed his toe the other day he just jumped around yelling Kneekh"
by Yohanna May 25, 2007
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