shit a brick

• shit bricks

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shit a brick (third-person singular simple present shits a brick, present participle shitting a brick, simple past shit a brick or shat a brick or shitted a brick, past participle shit a brick or shitted a brick or shat a brick)

1. (idiomatic, vulgar) To react strongly or excessively, especially in anger, fear, or astonishment.

   If our boss finds out we did this and didn't tell him, he's gonna shit a brick.

   • 1997, Kurt Vonnegut, Timequake:

     She was thunderstruck when she came face to face with the tomb of Sir Isaac Newton. At her age, and in that same place, my big brother Bernie, a born scientist who can't draw or paint for sour apples, would have shit an even bigger brick.

• brick it

• “shit a brick v.”, in Green’s Dictionary of Slang, Jonathon Green, 2016–present