Top Definition
When engaging in sexual intercourse in the same room as another couple, pulling out and slapping erect penises with the other man. (Like a high five, but with boners)
Harry was so proud of Nick's boning skills, that he had to stop and give him a high one!
by Surprises7 February 20, 2011
Like a High Five, but for not so great an achievement. Can be used in sarcastic terms.
Accompanied with the slapping of index fingers.
"I actually remembered my homework today"
"High One!"
by supremebeing October 28, 2007
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