What does tocar mean?
Expression
to be somebody's turn — to be time for something
Nothing to do with touching. Tocar in this sense means something falls to you by turn, by luck or by obligation: me toca a mí, hoy toca limpiar, le tocó la lotería. It is one of the most useful verbs in everyday Spanish and it nearly always comes in the third person with a pronoun: me, te, le.
Hoy te toca a ti fregar los platos.
