not cup of tea
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Related to not cup of tea: not my cup of tea
not one's cup of tea
Fig. not one's choice or preference. (Used to describe an activity you do not enjoy. Can sound somewhat affected.) You three visit the museum without me. Looking at fussy old paintings is not my cup of tea. Going to church, Mary said, was not her cup of tea.
not somebody's cup of tea
not what someone likes or is interested in I realize a fantasy computer game is not everyone's cup of tea, but this one is amazing.
Usage notes: also used without not: I like suspense in movies. It's my cup of tea.