Green’s Dictionary of Slang

rub ’n’ tug n.

[SE rub + tug n. (1f)]

the masturbation of a partner, usu. as performed by a prostitute.

[Aus]L. Redhead Peepshow [ebook] You never told me what happened when you went to that illegal brothel [...] Was it just rub ’n’ tug or did you get some extras?