He really blew the boatPosted: March 28, 2014
The speaker was referring to someone who had missed a big opportunity. This is a congruent conflation of “missed the boat” and “blew his chance”, both meaning to miss an opportunity. For some reason, “flew the coop” also comes to mind because of the rhyming of “flew” and “blew”. Nothing else comes to mind. A big shout out to Naomi David for sending this one in!