Top definition
Similar to a high 5 or high 10, but involves use of both hands and both feet. The participants stand opposite eachother and then jump, slapping both pairs of hands together, as well as touching both pairs of feet.
Person 1: Nice one, High 20!

Person2: No way, you might kick me or something!
by Harrison92 September 23, 2008
Happy St. Patties Day!
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