An example of cup of tea is sewing to a seamstress or knitting to a knitter.
cup of tea
- a favorite or well-suited thing, activity, etc.: golf isn't his cup of tea
- a thing to be taken into consideration or account; matterused esp. in the phrase a different cup of tea
(plural cups of tea)
- The second sense is most commonly used in phrases such as, not my cup of tea, just my cup of tea, etc.