The act of a man,while wearing pants or shorts, grabbing under his testes and pulling them up with his penis, thus concentrating his whole package into one "kiwi looking" clump
He just randomly did the kiwigrab in English class today
When you're going down on a beautiful young girl perhaps a virgin that is extremely fresh, clean, and juicy her vagina tastes like a kiwi, therefore you are eating kiwi.
"Nah Bob's busy right now, he's eating kiwi"
"Hey is that some kiwi on your chin?"