Storm in a teacup

Meaning

A situation where people are getting incredibly worked up over something that is ultimately trivial and unimportant. It describes an overreaction to a minor annoyance.

Condescending, dismissive

Used in a sentence

• Their argument over where to put the napkins is just a storm in a teacup.
• Don't worry about the office gossip; it is nothing more than a storm in a teacup.
• The entire debate about the color of the curtains was a storm in a teacup.