Nadsat (teen) speak-as used by Anthony Burgess in his novel, A Clockwork Orange- used to mean "friend".
Applied in the real world as the punk equivalent of "homie".
Please note that Nadsat lingo (which consists of Russified English) originates from the BOOK A Clockwork Orange, and not from the movie, as the movie was based on the version of Burgess' novel published in the United States
"There was me, that is Alex, and my three droogs, that is Pete, Georgie, and Dim, Dim being really dim, and we sat in the Korova Milkbar making up our rassoodockswhat to do with the evening, a filp dark chill winter bastard through dry" (Burgess 1).
a group of friends that are like brothes/sisters.Unlike the Clockwork Orange, droogs do not necissarily beat and rape people.Some may, and some may not.