Hi,
“Gunners had grabbed a winner in stoppage time against the Clarets. ‘It is a coupon buster,’ said… ‘I don’t think anyone would put a bet on that.’”
As I failed to find any definition of ‘coupon buster’, I can only try and interpret it by looking up both words separately: “a thing that stops or gets rid of a specified thing” + “a detachable portion of a certificate entitling the holder to something as a gift or discount, … a contest entry form”’ which makes it sound like an eliminator of your hopes to get sth valuable.
Any chance?
I think “contest entry form” is the closest definition of coupon for this case. A football betting coupon is where you try to predict the results of multiple football games - 10 or 12 games. You buy and fill out a coupon, the entry form, usually online these days. And if you predict the winner or the score or other variables (each coupon is different) for all the games correctly you win a big money prize. So evidently this was an unexpected win, so for the many people who failed to predict it, this busted, or ruined their coupons.
