From the early-2010s cloud-rap heyday of Kush & Orange Juice and Rolling Papers onwards, Wiz Khalifa has represented lifestyle rap to the fullest. Coming near the tail end of a particularly prodigious release year, one that included a two-volume collaboration with the like-minded Curren$y, the succinctly named Cool keeps the veritable smoke-a-thon going, with not-infrequent assistance from longtime production partners E. Dan and Sledgren. Between the chopped-and-screwed nods of “Yiccen” and the romantic, heady highs of “Los Angeles Sky,” he makes undeniably clear just why he remains rightfully centered as the tattooed face of this particular hip-hop strain. New entries in his cannabis canon like “Roll Up and Smile” find him luxuriating in willful excess, while fans of 420-friendly comedy gems Grandma’s Boy and Jay and Silent Bob Strike Back will exchange knowing, red-eyed glances at the cinematic references dropped on “Stoner Film.” To his credit, he also explores unexpected musical detours like the New Wave rock nostalgia of “The Calm” and the sing-along alt-pop of “Summer All Year.”