adj. unruly, rowdy, boisterous, uncontrollable; active and noisy, causing a ruckus
noisy and lacking in restraint or discipline; "a boisterous crowd"; "a social gathering that became rambunctious and out of hand"; "a robustious group of teenagers"; "beneath the rumbustious surface of his paintings is sympathy for the vulnerability of ordinary human beings"; "an unruly class"
(synonym) boisterous, robustious, rumbustious, unruly
I haven't seen the film, but I wonder if this is where Sylvester Stallone got the nick-name 'Rambo' from?
Actually, the novelist who created the John Rambo character got his inspiration first from a type of apple ("Rambo") that he saw in Pennsylvania. He thought the name had a "forceful" sound. He also liked that the pronunciation was similar to that of Arthur Rimbaud, author of A Season in Hell.
(Trivia is my life....it's a sickness....sorry to come off as a "know-it-all"..... )