1. First of all, what are they toasting to? Their names?
2. Cheers? Fine. With what? Coke? or OJ?
All the more bugging because its a derived thing, done for the "cool" factor.
Something akin to "take care", though this is more authentic...but it really doesnt fit every situation. Free Advice given to all and sundry every time you leave is a little too much to digest.