The act of discretely cupping a fart in your hand and then pretending to offer to shake someone’s hand. As the hand is offered in pseudo-friendship it is jerked swiftly upwards and the crumbly air biscuit is thrown into the face of the recipient.
"Nice to meet you Mr Smith" said Mr Brown as he discretely cupped his fart. "Nice to meet you too" said Mr Smith, holding out his hand in greeting. The exchange is sealed by a Dutch Handshake as Mr Brown offers his hand, only to throw the gaseous faeces into Mr Smith’s face at the last second.