See: CUP OF TEA.
{n. phr.}, {informal} 1. Something you enjoy or do well at; a special interest, or favorite occupation. Used with a possessive. * /You could always get him to go for a walk: hiking was just his cup of tea./ Compare: DOWN ONE'S ALLEY. 2. Something to think about; thing; matter. * /That's another cup of tea./ Compare: KETTLE OF FISH.