common as muck

as common as muck

Low-class. Primarily heard in UK, Australia. Considering she's wearing an outfit like that in public, she must be as common as muck. Are you as common as muck? Quit hooting and hollering like that! Wait, they live in that ramshackle old place? Ha! I always had a feeling they were secretly as common as muck.

See also: common, muck

Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.

common as muck

BRITISH, OFFENSIVE

If you say that someone is as common as muck, you mean that they are lower-class and not sophisticated. Leary guessed correctly that his guests were as common as muck and planned the menu accordingly.

See also: common, muck

Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012