tail between one's legs, with one's

with (one's) tail between (one's) legs

Displaying embarrassment or shame, especially after losing or having to admit that one was wrong. Likened to a dog literally putting its tail between its legs after being disciplined. Poor Jeff left the meeting with his tail between his legs after being called out on all his miscalculations. The former star walked off, with tail between legs, after striking out for the third time.
See also: leg, tail

tail between one's legs, with one's

Dejected, cowed, ashamed, especially after a defeat or being proven wrong. For example, After bragging about her great musical ability, she lost the competition and went off with her tail between her legs . This idiom alludes to a dog's slinking away in this manner. [First half of 1800s]
See also: tail