a bone in your leg

bone in (one's) leg

obsolete An invalid or fictitious excuse for being idle or lazy. You don't want to dance? Why, is there a bone in your leg?

See also: bone, leg

Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

a bone in your leg (or head)

a (feigned) reason for idleness. informal

See also: bone, leg

Farlex Partner Idioms Dictionary © Farlex 2017