have a worm in (one's) tongue(redirected from have a worm in their tongues)
have a worm in (one's) tongue
To be ornery, irritable, and prone to lashing out. Ever since my boyfriend lost his job, he's had a worm in his tongue and is not very pleasant to be around. Watch what you say around Uncle Ed—he has a worm in his tongue and gets angry at the slightest provocation.