verb meaning 'to give up a big lead and lose at the last moment', as the Toronto Maple Leafs did against the Boston Bruins in game 7 in the first round of the 2012/2013 NHL Playoffs.
"The Halifax Mooseheads nearly leafed the 2013 CHL Memorial Cup final, but managed to hang on for the win."
by MarkAdamHFX May 27, 2013