(1.) When one homosexual male phones another homosexual male for an impromptu session of gay sex; a gay male phone call solely for the purposes of hooking up.
I got so drunk last night I fellaphoned Jimmy and he came over and we had gay sex all night long.
(1) v. To converse, one male friend to another male friend, by telephone call; to "catch up" as between male friends by telephone
(2) n. The name for a telephone when two male friends are using it to converse with each other
"My bro Skeeter just got back from Vegas. I really have to fellaphone him and get the lowdown on his exploits."