A mushy, sloppy, experience created when problems occur during sex. This can occur with sex with any gender, species, or race.
Ben Dovah: I just had a nanner fuck!

Mike Hawk: What happened?

Ben Dovah: Well I was fucking my girlfriend last night and I came all over the bed NEXT to her vagina.

Mike Hawk: I hate nanner fucks.
by Zrm11 January 16, 2011
Get the Nanner Fuck mug.