off one’s block/chump/crust/head/nut/onion

Definition

Slang

  • adjective mad, crazy. These phrases are all elaborations of the well-established colloquialism, ‘off one’s head’ (heard since the mid-19th century). The terms are sometimes extended to mean intoxicated by drugs or drink, more usually denoted by phrases beginning with ‘out of’, such as out of one’s head.
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