"Chill out" originated on the east coast, NYC specifically and was a term used by heroin addicts who were going through heroin withdrawals. One of the many symptoms of heroin withdrawal is getting the chills and fellow junkies as a way to say see you later would tell each other to "chill out" meaning stay well, don't get sick or don't go into withdrawals from not having heroin.
See also "Dope Sick"
"I'm sick man, you got anything, I need something?" "No, I got nothing, chill out."
British slang for a scientist or technical expert, esp . when the speaker is not certain of the expert’s specific field of study. Not necessarily derogatory, but typically used by persons without a technical background. In the US, the equivalent would be “egghead”, “squint”, or “geek.”
Origin of the word is unknown. Started sometime in World War 2. Given the typical evolution of British slang, could easily have started because what these experts did was confusing or “baffling” to the common person.
According to the boffins downstairs, the murdererused a serrated blade.
When you have to pee in a movie but don’t want to miss anything, and must do the following mental equation: will the amount I have to pee cause enough discomfort to diminish my attention capacity for the remainder of the movie to an extent which is greater than the amount of the movie I would miss by making a mad dash to the restroom.
I saw Satantango last night, wonderful film but by the 5th hour I had to start doing peecalculus.