Originated from Diperooski, roosk is the activity of chewing some form of tobacco. Usually placed in the lower lip and satisfied for about 25-30 minutes. Amateur chewers may use the term 'Dip' as if to sound hardass when in reality Roosk is used by season professionals.
Guy 1: Hey wanna go down to the river?
Guy 2: What for eh?
Guy 1: A roosk!
Guy 2: Ahhh nothing like river rooskin