wstałeś/aś dziś lewą nogą? = phrase = literally, you got up using your left leg? = you got up on the wrong side of the bed? (you’ve been grumpy all day?)
wstałeś/aś dziś lewą nogą? = phrase = literally, you got up using your left leg? = you got up on the wrong side of the bed? (you’ve been grumpy all day?)