English Reference
Idiom idiom

crack a fat


To get an erection of the penis.

Meaning adapted from Wiktionary, available under CC BY-SA 4.0.


SIMPLE

He felt embarrassed when he cracked a fat in class.

CONTEXTUAL

The teenager tried to hide behind his bag because he had accidentally cracked a fat during the presentation.

COMPLEX

The sudden physical reaction caused him significant distress, as he found himself cracking a fat at the most inappropriate moment during the formal ceremony.


Related idioms8entries
  1. 01

    all it's cracked up to be

    As good as claims or reputation would suggest.

  2. 02

    big fat

    Complete, utter, total.

  3. 03

    crack a crust

    To make a living.

  4. 04

    crack a smile

    To smile, especially while attempting not to.

  5. 05

    crack down

    To take harsh action (against), as when enforcing a law more stringently than before.

  6. 06

    crack of dawn

    The first moment of daylight; the instant at which sunrise begins.

  7. 07

    crack through

    To penetrate

  8. 08

    crack up

    To laugh.

Last updated August 10, 2026