blow-out, n.² — Green’s Dictionary of Slang

blow-out n.²

[SE blow out, i.e. one’s hair]

(US black/campus) a very large ‘Afro’ hairstyle; a hairstyle in which one’s natural tight curls or kinks are blown out with a hairdryer.

2000		Ebonics Primer at www.dolemite.com 🌐 blow-out Definition: a fully-realized African-american hair experiment; popular from c.1968-1978. Example: Check out the muthafuckin’ blow-out on that brotha.
2012		Pelecanos (con. 1972) What It Was 9: His ratty blowout was the color of rust.