don't waste timeUsed to tell someone not to linger, dawdle, or keep doing something unnecessarily. Often followed by a verb, and commonly appears as อย่ามัวแต่ + verb.
TH: อย่ามัวแต่เล่น รีบทำการบ้านได้แล้ว
EN: Don’t keep playing; hurry up and do your homework.