Green’s Dictionary of Slang

pounce n.

a pimp; thus a general term of abuse.

2000

J.J. Connolly Layer Cake 50: She’s surrounding herself with all these fuckin pounces and mackerels.

SE in slang uses

In phrases

get the pounce (v.)

(US) to be sponged upon.

1915

Lincoln (NE) Daily News 2 Aug. 3-A: A good zig gits de pounce by ginks dat’ve been kind o’ buddies o’ his’n as he trudges troo de hotels.