Idioms of tail in English

can’t make head nor/or tail of something

to be unable to understand something

I couldn't make head nor tail of what he was saying.

chase your (own) tail

(informal) to be very busy but in fact achieve very little

heads or tails?

used to ask somebody which side of a coin they think will be facing upwards when it is tossed in order to decide something by chance

nose to tail

(British English) if cars, etc. are nose to tail, they are moving slowly in a long line with little space between them

The traffic was nose to tail for miles.

on somebody’s tail

(informal) following behind somebody very closely, especially in a car

There’s been a white van sitting on my tail for the past ten miles.

a sting in the tail

(informal) an unpleasant feature that comes at the end of a story, an event, etc. and makes it less good, successful, etc.

the tail (is) wagging the dog

used to describe a situation in which the most important aspect is being influenced and controlled by somebody/something that is not as important

turn tail

to run away from a fight or dangerous situation

When they heard the sirens, they turned tail and ran.

with your tail between your legs

(informal) feeling ashamed or unhappy because you have been defeated or punished