Definition of know what one likes in English:

know what one likes

phrase

  • Have fixed or definite tastes, without necessarily having the knowledge or informed opinion to support them.

    ‘I don't understand all this modern poetry at all, but I know what I like’
    • ‘I don't feel qualified to comment as a music critic, but I know what I like, and I enjoyed many of the musical selections.’
    • ‘I don't know a damn thing about photography, but I know what I like.’