What is Glass Treadmill?
1.
adj. Used to comment on the physical appearance of someone who is (or is suspected of) smoking pure methamphetamine (also known as P).
Yo, that dude Jay is looking real skinny, like he's been running on the glass treadmill.
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1.
Someone who is extremely 'effing' ugly.
That girl is ultra fugly.
See ultra, fugly, ugly, face, effin'..