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Related to kangaroo: kangaroo court
have a few kangaroos loose in the top paddock
To be crazy; to act, think, or behave in an eccentric, foolish, or nonsensical manner. Primarily heard in Australia. Tommy must have a few kangaroos loose in the top paddock if he thinks he can convince our mother to let him get a tattoo for his birthday. There's an old lady who stands on the corner yelling at strangers all day. I think she might have a few kangaroos loose in the top paddock.
a bogus or illegal court. Is this a staff meeting or a kangaroo court? You have turned this interview into a kangaroo court.
a kangaroo court
a court of law which is not official and which judges someone in an unfair way A kangaroo court was set up by the strikers to deal with people who had refused to stop working.
A self-appointed tribunal that violates established legal procedure; also, a dishonest or incompetent court of law. For example, The rebels set up a kangaroo court and condemned the prisoners to summary execution, or That judge runs a kangaroo court-he tells rape victims they should have been more careful . This expression is thought to liken the jumping ability of kangaroos to a court that jumps to conclusions on an invalid basis. [Mid-1800s]