Shade, n. (from Irish "shéadóg" meaning "blower") - term used to refer to the Gardaí Síochána or other law enforcement agency.
Comes from an era where gardaí carried whistles, which they blew to alert other gardaí and nearby civilians of crimes. The term "shéadóg" was commonly used to refer to gardaí (or other police) in the early 20th century. This became shortened to the English word "shade" in the traveller "gammer" slang, later becoming part of everyday usage.
"sketch bai, it's the shades!"
The effect of tasty food on a persons cognitive ability.
Example takes place at restaurant
Person 1, "Dude, how did you do on the test?"
Person 2, "It was cool...good (busy eating epic food)"
Person 3, "hahha, this fool is totally chipotled"