Green’s Dictionary of Slang

(Aus./US) a shave.

1924		Mail (Adelaide) 16 Feb. 1/4: I’m goin’ up the frog and toad (road) for a misbehave (shave).
1943		North. Times (Carnarvon, W.A.) 12 Nov. 3/2: Often fellows enter the Carna\rvon Drug Store and ask for a good preparation with which to have a decent ‘misbehave’.
1949		Monteleone Criminal Sl. (rev. edn).
1953		Berrey & Van den Bark Amer. Thes. Sl. (2nd edn).
1972		Dodson & Saczek Dict. of Cockney Rhy. Sl.
2002		Pete’s Aussie Sl. Home Page 🌐 misbehave: a shave.