«سُورْتَكْ إِيه؟ سُورْتَكْ إِيَّاكْ»

The saying portrays someone who never departs from a single pattern. The picture is of a person whose daily recitation is always the same short chapter, most likely the Fatiha, the Quran's opening chapter, never advancing to anything further.

By putting the question and its unvarying answer side by side, the saying shows that nothing new should be expected from such a person. The answer 'Iyyaka' is a word from Quranic recitation, standing in for that familiar passage, named again whatever the day.

Apply it to someone who sticks to one unchanging habit, routine, or way of doing things and never moves past it. It works as a compact exchange: a question about what the person is reciting, answered with the same familiar word.