When a warm banana is inserted into the vagina while the anus is sodomized. The banana skin is concurrently used to flail the buttocks of the recipient.
Leslie: "That banoffee pie you gave me last week was scrumtious"
Banonees could be a nickname for Hannah, or Bananas. Banonees is the person that laughs at all of your jokes even when they are not funny. Banonees will support you through your lol phase. She makes the weirdest faces.