When two people haven't seen each other for a long time, and instead of saying hi and catching up, one gives another a quick hug to be polite and continues on their way.
"Did you see that? I haven't seen him in two years and all he did was give me a drive-by hug!"
"He probably doesn't want to talk to you. You did cheat on him with his best friend."
"He probably doesn't want to talk to you. You did cheat on him with his best friend."
by wtfcrazies December 20, 2009