Usually an unexpected precursor signal from your stomach to your sphincter informing your hole that you are about to release a Hendren ( A giant turd )
Tony suddenly doubled over in discomfort while sitting in the back seat. He was suffering from Shit Pains and needed to drop loaf ASAP.
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.