the second one hilarious pun you have to have lived on the streets of Sofia to understand... kartoni network... karton is the way they say 'cardboard' and usually refers to what you roll to put a tip on a joint.
also the label, 'mahorka records' - mahorka is originally bulgarian gypsy slang (ciganski) for a cigarette rolled out of cigarette butts and often with 'karton' for the tip and very often using 'vestnik' hartiya, newspaper, as the wrapping.
dirty things that you learn in the dirty, warm drains of the serdika plateau.