psychedelic yawn 

1. A vomit induced by the ingestion of hallucinogenic drugs

2. A term used to describe anything which is boring and psychedelic

1. “Stokey has taken too many mushrooms and is having a psychedelic yawn”

2. “That Iron Butterfly album was one big psychedelic yawn”

psychedelic yawn by King Kandy October 10, 2006

psychadelic yawn 

Colorful vomit, i.e. after eating a curry or similar dish.

"I ate so much vindaloo last night, I did a psychadelic yawn in the cab on the way home".

psychadelic yawn by Mike Hewitt January 21, 2004