Bear in mind I am from the uk not usa.
Mine :- fanny, tush, vagina, c*nt (sorry ladies but I love that word), lady-garden
his :- penis, winky, widge, willy, peeee-niss, man-sword, love-pole, mighty-meaty, ok there's loads lol
usually is penis or widge and vagina
ste usually refers to his as his penis.