(n.) A rare phenomenon where an ex-boyfriend/girlfriend has become one of your better friends since the break-up. A combination of "ex" and "bestie".
"I always see you with Amanda. Didn't you guys break up?"
"Yeah, but we're bexies now. We're always hanging out."
"Yeah, but we're bexies now. We're always hanging out."
by Unit Circle June 09, 2014