FTP
For the Penis. Used a lot by resistance players on the game Ingress to define themselves and their sexual preferences.
Example 1:
Guy 1: Man, I didn't know jojo went that way.
Guy 2: Yeah dude, he's crazy FTP.

Example 2:
New Guy: Hello everyone!
Guy 1: Welcome to the Resistance!
Guy 2: Fuck toads!
New guys: Eewww, I like girls.
Guy 3: We're crazy FTP!
Guy 4: FTP
MarsOG: FTP!