A prolonged period of time, usually during a summer break from school, in which a typical hard worker enters a near hibernation state; no work is accomplished and personal enrichment is out of the question. It usually takes the bum several weeks to remove him or herself from the couch and be productive.
Josh: Dude, it's 2 weeks into summer, and I haven't seen Brad once!
Luke: Relax, bro, Brad's in the middle of his chillin' spree.
Josh: Damn, son, I best give him a while to come out of it.