Green’s Dictionary of Slang

1. a derog. term for a woman; also attrib.

1938		J. Weidman I Can Get It For You Wholesale 92: I felt so good about her having had the taste to pick something dignified, and not something that would make her look like a loud Bronx blouse.
1950		Goldin et al. DAUL 30/1: Blouser. A woman of ill repute; a prostitute.
1955		(con. 1930) H. Robbins A Stone for Danny Fisher 55: I’m strictly a blouse man myself.
1993		B. Moore Lex. Cadet Sl. 46/2: ‘That blouse over there—not bad, hey?’.
1997		N. Barlay Curvy Lovebox 53: Some dippy blouse in a Volvo in front gets up my nose.

2. (Aus.) an effeminate, poss. homosexual male; a weakling.

1993

B. Moore Lex. Cadet Sl. 46/1: That blouse over there—he’s got his fucking hair permed!’.

3. see blowse n.