What is Friendboy?
1.
A male friend of a girl, with whom the girl does not have sexual relations with, (or commonly also, just doesn't want to admit she is, in fact fucking him) who is not her
See also:
Synonym of:
Compare:
Mother: Who was that guy dropping you home with the car, boyfriend?
Daughter: He's just a friendboy...
See
2.
A friend of the opposite sex with whom you are not romantically attached.
Sam: I thought that Ann Marie was dating Jay?
Ginny: She is, you ninny!
Maddie: Jay is her boyfriend, Kevin is her friendboy!
See