The Vietnamese word "ỉ eo" can be translated to English as "to complain" or "to nag." It is often used to describe the act of expressing dissatisfaction or annoyance about something, especially in a persistent or whiny manner.
While "ỉ eo" primarily means to complain or nag, in some contexts, it might also refer to someone who is always looking for something to criticize or find fault with, extending beyond just simple complaints.