switch, n.² — Green’s Dictionary of Slang

switch n.²

[SE switch, to flourish]

(US black) the movement of a woman’s hips as she walks, also of a man; thus as v., to walk with a sway of the hips.

1937		Fats Waller ‘The Joint is Jumpin’’ 🎵 Who is that that just came in? / Just look at the way he’s switchin’!
1949		‘Hal Ellson’ Duke 73: Got nice legs, and a nice switch.
1957		H. Simmons Corner Boy 68: Man, dig the switch on the bitch!

hit switches (v.) (also hit a switch, hit the switch) [to trigger the hydraulics on a low-rider automobile, making it rise and fall]

(US black) to have sexual intercourse.

1994		Common ‘I Used to Love H.E.R.’ 🎵 Talkin about poppin Glocks, servin rocks, and hittin switches.
1999		Dr Dre ‘Let’s Get High’ 🎵 I’m a hustlin bitch! / I like them get rich niggaz, them hit the switch niggaz.
2000		Snoop Dogg ‘Set It Off’ 🎵 I am Doggy Dogg bitch (beitch) love to hit a switch.
2002		‘Touré’ Portable Promised Land (ms.) 158: We Words (My Favorite Things) [...] Packin steel. Hittin switches. Throwin signs. Taggin up.
2007		UGK ‘Quit Hatin’ The South’ 🎵 Fuck yo’ bitch and hit the switch and put my dick up in her jaw.