It's a prison thing. Lower inmates are forced to lick the assholes of the leading inmates, but they put salad dressing on it to hide the taste. Hence, tossing the salad.
Analingus. Specifically, mouth-to-anus contact of a sexual nature. Orgin often attributed to prison.
Person A: "How was your date last night?"
Person B: "Not bad, I took her home and we fooled around, but while I was eating her out she asked me to toss her salad too."
taking tongs and mixing the salad so you do not just get salad or tomatoes you get everything. For more information on tossing salads go to www.thecookingchannel.com
