coatful noun3 •The amount that a coat can hold.And here we walk in the house with two coatfuls and armfuls of these bulbs. — 1981 •A quantity that is contained within a coat.A coatful of wind is called an admiral. — 1930 •A quantity that sits on a coat.With this coatful of painful weapons, it is not surprising that a porcupine has few enemies. — 1987 formscoatfuls · coatsful