Act consisting of two people, one must be a man. The man takes said "banana", and places it in his own anus. Proceeding to squish it while inside the anus until it reaches a nice warm mushy texture. Durring banana squishing, another man or women gives a reach around to the man with the banana. Just before he climazes he squeezes the banana from his anus into the recipients mouth, then turning around to exjaculate ontop of the banana.
The last chick I gave a banana cream pie to threw up.