A fit of extreme laughter in which one's face goes red and one's vocal cords freeze up. The term "tossing the cage" refers to the spasms of the diaphragm and ribcage that occur during extreme laughter.
Man 1: Yo, that mansdeadass tossing the cage right now?!
Man 2: It wasn't even that funny!
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."