What is "yay"

"this," as in yay big "this big," 1950s, perhaps from yea "yes" in its sense of "even, truly, verily." "a sort of demonstrative adverb used with adjectives of size, height, extent, etc., and often accompanied by a hand gesture indicating size" [DAS].

Etymology 1 adv. (context chiefly US English) so, this (accompanied by a hand gesture) interj. 1 (context colloquial English) (alternative form of yea nodot=1 English) (gloss: yes). 2 (context colloquial English) (non-gloss definition: An expression of happiness.) Etymology 2

n. The name of the letter for the ''y'' sound in Pitman shorthand. Etymology 3

n. (context US slang English) cocaine.

Yay or YAY may refer to:

• St. Anthony Airport, Newfoundland and Labrador, Canada, by IATA code
• Gwune language, by ISO 639-3 code
• Yay language, an alternate name for Bouyei, in southern Guizhou Province in mainland China
• Youth Assisting Youth, a volunteer-based peer mentoring program based in Toronto, Ontario, Canada