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1 definition by Batman09

 
1.
A 'Knee 5!' is the pinnacle of acknowledgment- outweighing the power of the ‘high 5!’. When someone makes a hilarious or extremely witty call, you simply call out ‘knee 5’ and proceed to lift you knee and tap theirs.
'That's Knee 5! worthy...'
by Batman09 November 04, 2009