The most sacred thing to swear by ever. Usually used at the end of a sentence, this phrase signifies that you swear on the Holy City of Bompton , and take responsibility for whatever consequences may ensue by lying upon it. Only used by the highest class of people, as the responsibility is too much for any mere peasant to use it.
Zach: Dude I totally got her nudes last night.
Mason: Nah, on Bompton?
Zach: Deadass on Bompton.
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.