1.NounA company of Irish herdsmen, or a single herdsman, wandering from place to place with flocks and herds, and living on their milk.
2.NounAn enclosed shelter in the pasture land, usually in the mountainous parts, for the shelter of cattle or their herders.
"The term booley was not confined to the mountainous districts; for in some parts of Ireland it was applied to any place where cattle were fed or milked, or which was set apart for dairy purposes."