bananafish
an imaginary fish from JD Salinger's short story called "A Perfect Day For Bananafish" which is found in the book 9 stories by Salinger. According to the main character of the story banana-fish are fish the swim into coral reef and holes in rocks to eat the bananas growing there but then eat too many and cannot swim back out and then die because of this.
The story about bananafish is rather sad.
Bananafish
a boner in water
When Miranda started grinding on Tommy in the pool, Tommy instantly found himself with a bananafish.
Bananafishing
A gal pretending to be a dude to get that gay cock
Person a: "ay yo, did you hear that Kayla got caught bananafishing Jared"
Person b: "Haha, yeah right. Jared would never fall for that shit"
Person a: "aye, you're right"
Person b: "Haha, yeah right. Jared would never fall for that shit"
Person a: "aye, you're right"