This comedy’s 4/20 opening date is, as you might expect (particularly if you’re a fan of the Broken Lizard comedy troupe responsible for the movie), a stoner joke. But this non-indulger will attest that you don’t have to be high to find this long-impending sequel to 2002’s “Super Troopers” very funny indeed.

The Broken Lizard troupe — Kevin Heffernan (the stocky one who’s the butt of the fat jokes), Steve Lemme, Paul Soter, Erik Stolhanske, and Jay Chandrasekhar — shares writing and acting duties and defers directing to Mr. Chandrasekhar. I’d be lying if I said their maleness didn’t show. Their humor gets its slapstick from the Three Stooges, its non sequitur verbal mojo from the less-cerebral routines of the Firesign Theater, with a dash of Monty Python tossed in. The troupe’s bro rambunctiousness stems from “National Lampoon’s Animal House,” but the crude sexual humor, thankfully I’d have to say, mostly sticks to the mocking of male genitalia.