put the mockers on

put the mockers on (something)

To disrupt, foil, or cause problems to someone's plan, activity, or project. Primarily heard in UK. The caterer cancelled on me at the last minute, which really puts the mockers on this party! It will really put the mockers on our project if the board decides not to increase our funding. You would think the rise of cheap electric cars would put the mockers on Big Oil's profits, but they actually seem to be embracing the change.
See also: mockers, on, put

put the mockers on

1 put an end to; thwart. 2 bring bad luck to.
This expression originated as early 20th-century British slang. An Australian variant is put the mocks on.
1 1966 Lionel Davidson A Long Way to Shiloh Shimshon and the judo both seemed to have put the mockers on this particular idyll. We left soon after.
2 1970 Joyce Porter Dover Strikes Again This investigation had got the mockers on it from the start.
See also: mockers, on, put
References in periodicals archive ?
BARCELONA being taken apart by Bayern Munich on Tuesday night didn't just put the mockers on a Gran Classico in the Champions League final at Wembley.
Don't want to put the mockers on him but the 7-1 I got looks nice now.
CRYSTAL-clear water and a flat calm put the mockers on the Dysart Open even before it began - and three inches of overnight snow, which promptly froze, did nothing to improve things.
Let''s just hope the reported cutback in culture funding the city is talking about doesn''t put the mockers on any of this.
I DON'T want to put the mockers on the recent Land Girls TV programme, but if this was to be the beginning of the war the makers want to portray things as they were.
This week, though, we are hoping not to put the mockers on Warren Gatland's men by going for them to make it two wins out of two.
I SEEM to have put the mockers on Wigan Warriors forward Iafeta Palea'asina.
I never like to tip my horses on Twitter before a race as it can put the mockers on them.
BOUVERIE put the mockers on SHIFTING STAR when he napped him at Newbury last time - the inevitable happened and he finished second.
But an unkind north-westerly put the mockers on that, and it was Stranraer's Bruce McLean and Jim Keith who handled the conditions best to win the first and second days respectively.
The bride-to-be has already put the mockers on Russ's plans to make their impending nuptials a rock 'n' roll affair.
You hear people all the time saying: "Ooh, I can't back my own team because I will put the mockers on them.
So I'm not going to change now in case I put the mockers on them
I'll have six horses running for me over the three days, but I won't be having a bet in case I put the mockers on them
STEAD: His move has put the mockers on Huddersfield