A bartender at a skanky dive bar where all people do is get piss drunk and puke. This bar is usually the last stop on a night of excessive drinking. Often times the person who turns the bartender into the barftender is a weekend warrior trying to hang with seasoned alcoholics.
A barfriend is someone whom you only associate with at a drinking establishment, ie. a bar. Often used in a romantic context, to mean someone whom you are flirty, sexually permissive, or even pretending to date when in the bar.
"My barfriend called me today, looks like I'm gonna be drunk again!" or "Listen, you're just my barfriend, not my boyfriend. What happens in Felix's, stays in Felix's."
Boyfriendervention( noun): A boyfriend intervention. To interfere with the formation or continuation of your boyfriend's participation in a relationship with you, or to arrest the romantic boyfriendship of a friend that has been determined to be detrimental to some or all of the parties involved. (Verb: Boyfriendervene)
A boyfriendervention was the only way Colette knew to get that no good two timing guy out of her sister's life.