yay (2)EnglishOxford New American Dictionaryyay2 /yā, jeɪ / (also yea) ▸ adverb informal (with adjectives of measure) to this extent; so: I knew him when he was yay big. – ORIGIN 1960s : probably a variant of yea1.
EnglishOxford New American DictionaryEnglishOxford New American Dictionary
