bone dance, n. — Green’s Dictionary of Slang

bone dance n.

(US campus) sexual intercourse; thus as v., bone dance.

1988

Eble Campus Sl. Oct. 2: bone-dance – sexual intercourse: [...] I heard they were bone dancing.

do the bone (dance) (v.)

to have sexual intercourse.

1988		Eble Campus Sl. Oct. 2: bone dance – [...] So, are Jane and Josh doing the bone?
1989		P. Munro Sl. U.
1991		D. Jenkins You Gotta Play Hurt 115: ‘You rascal, if you’d caught me in another life, we’d be parallel parked by now.’ ‘We called it bone dancing at Chapel Hill’.
2003		Eble Campus Sl. Nov. 2: do the bone – engage in sexual intercourse.