Storm in a teacup
zaɪəɹəθɹiː tɪtuː dafɔː zjuːəfɔː zaɪəθɹiːəʊ tɪtuː dafɔː zjuːəfɔː
In Chinese 小题大做 (xiǎo tí dà zuò)
This idiom means 'to make a mountain out of a molehill'.
Example
"别小题大做了！ (Bié xiǎo tí dà zuò le!) - Don't make a mountain out of a molehill!"
