1. or aka kopile - literally means bastard; that is the
offensive form used predominately by old people
2. Widely used in Sofia among guys since the 1970s; as mentioned previously it is not an insult but rather slang for a man, buddy, etc.
NOTE: In Bulgaria only people from Sofia refer to each other as kopele and only they can use that word on anyone else; if you are from the province and you use the word kopele – first, you would sound
ridiculous, second, you would be laughed at and third, you would
eventually get a kick in the mouth. Foreigners using "kopele" are exempted from the latter example. ;-)))