1. Literally, to mix various ingredients together to create a salad. Modifiers and articles ("the" and "a/an") are often used between "toss" and "salad." I like to chop up a bunch of ingredients at the beginning of the week and keep them in the fridge. That way it's really quick and easy to toss a nice salad before dinner each night. A: "How can I help to get dinner ready?" B: "Let's see. John's tossing some salad, so maybe you could set the table?"
2. vulgar slang To engage in anilingus—that is, to orally stimulate someone's anus to provide sexual gratification. A possessive pronoun can be used between "toss" and "salad."
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
toss a salad
to mix various salad ingredients together. The chef tossed the salad. I tossed the salad just before my guests arrived.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.