To boid someone off, means you mug them off, leave them with a poor arse excuse. Its unexceptable behaviour in all examples.
Fancy a curry n pint tonight, its just me u n simon again, adam will boid off. surprise surprise.
when some says something and another person just kisses there teeth of says whatever or gets aired
Guy 1: Whats up?
Guy 2: KTT (kiss their teeth)
Guy 3: you got boid off guy 1. lol