English Reference
Idiom idiom

junkyard dog


An animal or person with an especially nasty and combative demeanor.

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


SIMPLE

He acts like a junkyard dog when he loses a game.

CONTEXTUAL

The manager became a real junkyard dog during the meeting, attacking every suggestion the team made.

COMPLEX

Despite his professional appearance, he revealed himself to be a junkyard dog, fighting every minor point with unnecessary aggression and hostility.


first recorded 20th c.

From junkyard + dog. The literal sense of the compound was popularised in 1973 by the Jim Croce song Bad, Bad Leroy Brown, which employed the animal as a benchmark for the protagonist's temperament.


Related idioms8entries
  1. 01

    buy a dog and bark oneself

    To do something that one has hired someone else to do.

  2. 02

    call off the dogs

    To ease up on after inflicting great punishment.

  3. 03

    cat and dog life

    An unhappy married life marked by arguments and disagreements.

  4. 04

    dog and cat

    A team comprising one male and one female, either working as associates or having one as the second-in-command to the other.

  5. 05

    dog and pony show

    Any presentation or display that is overly contrived or intricate, while lacking real substance.

  6. 06

    dog around

    To follow diligently.

  7. 07

    dog in the hunt

    Something that may lead to gain, depending on the outcome; a position for which to campaign or cheer.

  8. 08

    dog in the manger

    Someone who denies to others something that the denier cannot use.

Last updated August 10, 2026