Definition of go ape in US English:

go ape

phrase

informal
  • Express wild excitement or anger.

    ‘your kids will go ape over these Popsicles!’
    • ‘It was a hit, but people didn't exactly go ape over it.’
    • ‘He went ape when he netted against his former club ten minutes from time after he flicked the ball up with his left foot and rammed it into the net with his right.’
    • ‘In a desperate bid to regain his ascendancy he threatened their actual incomes; and the party room went ape.’
    • ‘When the reactionaries saw that issue they went ape.’
    • ‘Barney brought Ronnie over and the fans went ape.’
    • ‘Kelly went ape, ridiculed such a notion and sent the man packing from his premises.’
    • ‘Charlie went ape, he hurled the planter at the lounge door, the wood splintered, cracked.’
    • ‘Mind you, most of Europe went ape over the election, and it doubled my fun.’
    • ‘He will go ape and beat his opponents down.’
    • ‘Aileen is played by Charlize Theron in a performance that everybody's going ape over, and it's easy to see why.’
    mad, crazy, insane, out of one's mind, hysterical, beside oneself, frenzied, crazed, demented, maniacal, manic, frantic, wound up, worked up, raving, wild
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