A dildo that has been used by several or, a single person with an STD. Ruining the dildo and making it a dumpster dildo
I was looking through her drawers and I found her Dumpster Dildo.
When someone is having anal sex and their penis gets covered with shit. Thus covering the anal recipient ass with shit.
Guy 1 : "Yo, did you hook up with that girl last night"?
Guy 2: "Yeah, I was doin' it in the ass and gave her a Shit Salad Sandwich".
Guy 1 : "Hey, that's fly, dog".