SE in slang uses
1. [1930s+] (also peddle one’s arse, ...butt, ...gash, ...hips, ...hump, ...peter, ...shape, ...stuff) to work as a prostitute, of either gender; to be very promiscuous; thus peddle ass v., as a generic [ass n. (2)/arse n. (1)/butt n.1 (1a)/gash n.1 (1)/hump n.1 (3a)/peter n.4 /stuff n. (8a)].
2. [1990s+] in fig. use, to prostitute oneself.
see under paper n.
[1920s–30s] (US) to sell one’s possessions, esp. to a second-hand store.
[1960s+] to work as a prostitute; thus pussy-peddling n.
[1960s] to send a prostitute out to work.
[1930s] (US) an excl. of disdainful dismissal.