A sound effect from early 90s video game, Super
Mario World. This particular sound is made when the character,
Yoshi regurgitates an enemy out its mouth resulting in a noise resembling the word 'bow.' Can be used in response to just about anything said to you. Occasionally this word has a rippling effect and once triggered by
one person can result in a room full of people repeating the word over and over until everyone is in a state of hysteria.