Get a rustlers ya dick

1. A statement that is used to discourage a person from disappointment as a result of unrealistic expectations. The origin of which comes from the Rustlers Burgers alluring sales pitch, only to be terribly disappointed as you bite into a soggy-bunned nuclearly calcified burger!

2. A statement that can also be an implication of an unhealthy dose of scepticism.

Guy one: " Hey man I'm going to quit smoking, stop getting drunk and hit the gym!"

Guy two: " Man, as if, get a rustlers ya dick!"