yo-hah, yohay,int. (n.) An exclamation of pleasure among N. American Indians. 1751J. Bartram Observ.Trav. Pennsylv. 22 They gave us the Yohay, a particular Indian expression of approbation.1791J. Long Voy.Ind.Interpr. 56 These [gifts] were received with a full yo-hah.