Des C1 C2 unit 26 idioms

at a loose end

with nothing in particular to do

couch potato

someone who spends a lot of time sitting at home watching television

do sth on a whim

do because of a sudden feeling that you must have or do something

have time on your hands

have more time available than you need

let your hair down

relax and enjoy yourself because you are in a comfortable environment

life and soul of the party

someone who is vert lively at social events

put your feet up

sit down and relax , especially with your feet raised off the ground

recharge your batteries

rest after being very busy , so that you will be ready to start working again

set your heart on

decide that you want something very much

variety is the spice of life

used for saying that different experiences and situations make life enjoyable or interesting