Every Saturday I’ll give you a couple of idioms to learn. An idiom is a saying or phrase whose meaning cannot be taken from the literal meanings of the words.
straw that breaks the camel’s back: a small trouble which follows other troubles and makes one become angry or do something
Example:
Mr. Jones is a patient teacher, but when Steve came late for class for the eighth time this month, that was the straw that broke the camel’s back.
tail between one’s legs: feel beaten, ashamed (after a scolding etc.)
Example:
Widow Douglas gave the boys such a talking-to when their baseball broke her window that they all went home with their tails between their legs.