1) A hasty way to end a conversation.
2) Officially an abbrieviation of 'Ok,
thank you, bye.'
3) Most commonly used sarcastically after an
insult to try and make it sound jokey (it usually isn'
t...)
Guy:
Hey, d'you remember that guy you pulled last night? You know! The vertically challenged asthmatic one with a glandular disorder?
Girl:
Hey, d'you fancy shutting the fuck up now? kthnxbai!
Guy: ...