The art of manipulation of the head of one's penis with the fingers of the aiming hand in order to constrict the flow while simultaneously targeting items several feet overhead. This can be a individual or several person challenge of high marking on walls, roofs, or over busses.
I can't believe that guy was able to high piss right into the eavestrough 11 feet above the ground.

If you try to high piss over that girl and you incorrectly set your flow rate, you could end up passing right in her face.
by _Knockers_ September 11, 2012
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pronounced pis hahy. It is often said with the two words slurred as one.

Piss High is used when an individual is high out of their fucking mind. Their motor skills are delayed and they bug about absolutely nothing or simply sit on the couch with a severe case of the munches. Essentially, it has the same meaning as "piss drunk" without the throwing up and the nonsense of alcohol.
Girl #1 "Is he driving?!"
Girl #2 "He should not be driving! He is piss high!"
by Jelby Sherlman January 13, 2010
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