Green’s Dictionary of Slang

blouse v.2

[? blow v.1 (4d)]

(US) to leave.

Ogden Standard Examiner 12 Apr. 6/5: There was one wally I was goofy about, but while I was necking with him, Harry caught a tomato, so he says, ‘Let’s blouse’.
[US]Davenport Democrat and Leader (IA) 28 May 32/2–3: We bloused into a nosebaggery with a flat-wheeler and boiler-factory.