not someone's cup of tea
US /nɑt ˈsʌm.wʌnz kʌp əv tiː/
UK /nɑt ˈsʌm.wʌnz kʌp əv tiː/
1.
not what someone likes or is interested in
:
•
Classical music is really not my cup of tea.
•
Hiking in the mountains is not his cup of tea; he prefers relaxing on the beach.