1.The origin of all things bullshit. The ass shit express causes gas price raises, world hunger, Justin Beiber, etc.
2.The alteration of Ass Shit Express is Shit Ass Express which is what happens after eating some fish nibblers at White Castle.
1. Come on guys we can do this (Sniped in the head) Ass Shit Express god dammit.
2.I didn't come to school on Monday cause i had a case of the Shit Ass Express
12 step recovery jargon referring to someone new who talks about how great life is, now that they'resober. Usually meaning that the person is out of touch with reality.
The new guy seems pretty happy for a dude who has no job, no money and no family. He must be on a pink cloud.