A teapot is a container with a lid, a handle, and a spout, used for making and serving tea.
If you describe a situation as a tempest in a teapot, you think that a lot of fuss is being made about something that is not important. 小题大做 [美国英语] [PHR after v, v-link PHR]
例：
For some, it may seem silly, a tempest in a teapot.
对有些人来说，这似乎很荒唐，是小题大做。