IdiomAges 15–20A storm in a teacup
A lot of fuss about something unimportant.
The argument over window seats was a storm in a teacup.
Remember: British and Indian form; American English says 'a tempest in a teapot'. Sounds a little old but is understood.
Short lessonEveryday idiomsIdioms are phrases whose meaning is different from the meaning of their words.