Green’s Dictionary of Slang

sew v.

[the movements of the needle and of the body or hand]

1. [mid-19C+] (also sew up) to have sexual intercourse; thus sewing n.

2. [1940s+] (US black/gay) to masturbate.

3. see sew up v. (7)

4. see sew up v. (10)

In phrases

sew someone’s sees (v.)

see under see n.

sew up (v.)

see separate entry.