shit a brick

• shit bricks

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.