When someone is bonkers, they are crazy. This might mean that they are insane, or it might just mean that they are having a really bad day.

  • He was acting really bonkers, and I didn't know what to do.

  • She was acting so bonkers that I was worried about her.

Definition of bonkers


informal or slang terms for mentally irregular


around the bend, balmy, barmy, bats, batty, buggy, cracked, crackers, daft, dotty, fruity, haywire, kookie, kooky, loco, loony, loopy, nuts, nutty, round the bend, wacky, whacky

Nearby Words

bonkers Pronunciation in a video

Example Sentences for bonkers

  • 1

    The Bonkers series is the leading happy hardcore compilation series in the UK.

  • 2

    That's not just wrong, it's bonkers.

  • 3

    It's not as if everyone is biased or bonkers.

  • 4

    The idea that this is a branch is bonkers.

  • 5

    Suggesting it is the study of untruths is bonkers.

  • 6

    In fact, that conclusion is rather bonkers.

  • 7

    Marsupilami was back in the days of Bonkers.

  • 8

    Seems a bonkers idea to me, too.

  • 9

    Tortorella is trying to drive me bonkers.

  • 10

    With Miranda, Bonkers was more the brunt of the slapstick.