The banana cream special can be performed either to one's partner or one's lonely self. The act is performed by cutting off the end of a banana (the non-stalk side), shoving this end into his/her/your orifice, and squeezing the mushy insides of the banana completely out of the peel. When the peel is quickly and forcefully extracted, all that remains in the hole is a moist clump of banana mush. It's up to the receiver when and how to remove it from said hole.
Dan: How'd your night go with that chick you brought home?
Brian: Ehhh...it started slow, but that mean banana cream special I gave her really capped off the night!