EAT LIKE A HEIFER is a phrase used to describe someone who eats a lot of food. GRAZE, which has five letters, is the crossword solution for this phrase. Grazing is a type of feeding behavior in which animals eat small amounts of food over a long period of time. This behavior is often seen in cows and other livestock, which is why the phrase EAT LIKE A HEIFER is used to describe someone who eats a lot of food.