DFV: Down For Visa - very similar to DTF (down to fuck), but only applies to girls who want to get with you purely because of your visa status, and not because they find you attractive in any other way, e.g. some foreign chicks, mail order brides...
Cro-fish: Man, every time I go to eastern europe on holiday all the local girls love gettin' some of the cro-fish!
Muzzy: Dude, that's not cause they find you attractive, its cause they're all DFV. Do you really wanna get with someone like that?
Crofish: For sure. I'll promise these girls a life with me in a nice warm and stable country, but instead they will find something nice warm and stable in my jocks. Holla!