"Friends With Minor Benefits" denotes a relationship in which two friends participate in non-coital activities usually
designated for more intimate relationships without the attached emotional bond.
These activities can range anywhere from simple making out all the way to
mutual masturbation and/or oral sex, but does not include actual coitus (that would be considered "
friends with benefits").
Guy: I walked in on Bob and Mary in a heated
makeout session earlier.
Girl: I didn't know Bob and Mary were going out?
Guy: They're not. They're
just friends with
minor benefits.