Run around like a chicken with its head chopped off.
We use this to describe a situation in which things are hectic and you are forced to hurry about with barely time to think about what you are doing.
Tie the knot
To tie the knot means to get married. Example: Jim and Sue finally tied the knot after being engaged for more than a year.
Keep a stiff upper lip
This means to be exhausted, very tired. Example: I’m all tuckered out from doing spring cleaning.
This describes a feeling of restlessness and excitement felt at the beginning of spring.
Put [one’s] foot in [one’s] mouth
This means to say something foolish, embarrassing, or tactless. Example: Charlie put his foot in his mouth when he called his wife by his old girlfriend’s name.
Flog [beat] a dead horse
This means a particular effort is a waste of time as there will be no outcome. Example: Asking the boss for a raise is like beating a dead horse.
Get under [one’s] skin
This is used to describe something that is very annoying and irritating. Example: Her constant complaining about my poor driving really gets under my skin.
 Expressions used in ordinary conversation that are not formal or literary