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".
The act of using one's hand or fingers to pleasure the butt hole of his/her partner (in lieu of using the tongue), usually whilst aiding in masturbation.
The term was made famous by members of the DFW, Tx radio show, The Russ Martin Show.
I'm not gonna toss your salad, but I'll give you a hand salad.