eh di ikaw na!
It is usually used as an insult to someone who is performing better than you. A close translation in English would be, "then you do it, if you're so good at it", or "good for you!" but said with a sarcastic tone. It is a phrase frequently associated with smart shaming but can also be used as a form of banter for close friends.
"Natapos ko na assignment ko!"
"Eh di ikaw na!"
"I finished my homework already!"
"Well, good for you!"