1. A representation of the sound of spitting or the act of spitting.
Usage: informal; onomatopoeia; often used in comic books and informal writing to depict spitting

Examples

• The character in the comic book went 'ptui!' after tasting the bitter medicine.
• He made a ptui sound to show his disgust at the proposal.
• The old prospector let out a ptui and wiped his mouth with the back of his hand.