Similar to a receding hairline; this is one that recedes so quickly it seems to be more noticeable with every passing moment, and can be likened to a brigade running away in battle. Most common in men in their twenties or early thirties.
"What's with Joe's haircut? It seems to be styled the same but it looks way different for some reason."

"I wouldn't mention it to him. He's trying to hide his retreating hairline."
by USH333 May 22, 2009
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When a gal shaves up her mommy parts, leaving hair to the north and smooth lips to the south.
I didn't know Gena shaved down there, she was bald to top of her crack, it was like a hairline fracture!
by Harry Ballsack September 29, 2006
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An extremely disappointing hairline that goes, goes, goes and doesn’t stop going back
by Hxrtzi September 11, 2020
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A hair line looks like a fadder and plays temple run all day
Trey hairline looks like lebron james on 2k
by Trey asscrack May 11, 2015
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