WBF, short for Worst
Best Friend. A friend that you like a lot but they
always flake or let you down. Phonetic play on WTF, and to be used as such, like an exclamation, when appropriate.
Kristy: "Franke just texted, he can't come to the party."
Dan: "WBF! Why does he even pretend like he'
s gonna go?"
Kristy: "Seriously, W-
B-F."
Brian: "Hey guys thanks for helping me move -- wait where'
s Dan, I thought he said he was coming?"
Franke: "I think he'
s sick or something."
Brian: "WBF! He'
s been sick for like 10 years, no one'
s buying that shit anymore."