Text:

That’s not my cup of tea

Context:

The informant uses this phrase typically when talking about something that someone did or an object that they do not like. She is not sure where she developed it from, but it is a relatively common saying. 

Analysis:

This idiom originated from Britain in the early 20th century. It is used to convey that you are not interested in something or simply to convey preference. It is likely used in English speaking countries or cultures where enjoying a cup of tea is common or expected, therefore referring to something as “not being your cup of tea” would convey to others that you dislike something without saying it overtly.