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buttock-clenching

British  

adjective

  1. informal making one tighten the buttocks through extreme fear or embarrassment

    buttock-clenching embarrassment

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A blend of financial laboratory, corporate labyrinth and buttock-clenching thrill ride, Musk Inc has pushed the boundary of what was thought possible.

From Economist

It doesn't really matter though; it's still bloody good fun, a buttock-clenching roller-coaster.

From The Guardian