PHK's Hair is the definition of absolute horizontality. PHK's hair is often/sometimes used to calibrate advanced astronomical equipment such as the Hubble Telescope, and other highly sophisticated devices.
Person A: "Wow! look at that guys hair. It's like a 100% horizontal"

Person B: "Yeah dude, i know. It's said to be the definition of straightness. The only thing he uses to keep that extremely plane cut, also known as the PHK's Hair, is the blowing wind and his subconscious mind power"
by The Lizard Kingzzz October 11, 2011
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