Green’s Dictionary of Slang

1. a toupee.

1934		Weseen Dict. Amer. Sl. 139: [Theater] Divot – A toupee.
1953		Sat. Eve. Post 14 Mar. 41: It’s generally known that for screen purposes I wear a device the trade calls a ‘scalp doily,’ ‘a mucket’ or ‘a divot’...Donning a mucket. Not that it’s such a chore to put on, but the glue in it makes my forehead itch [HDAS].
1960, 1975		Wentworth & Flexner DAS.

2. the female genitals, when heavily covered in pubic hair.

1999

Roger’s Profanisaurus 3 in Viz 98 Oct. 10: divot n. See biffer.