Bronco/ˈbrɑːŋkəʊ/ Definition 1 of 2Pro Tip 1/3Wild Spirit Understanding 'bronco' reflects a horse's untamed nature, often linked to freedom. He has the same wild spirit as a bronco. Pro Tip 2/3Rodeo Context 'Bronco' is commonly used in discussions about rodeos, where they are often featured. The cowboy's bronco bucked wildly at the rodeo. Pro Tip 3/3Metaphoric Use Metaphorically, 'bronco' can describe someone rebellious or unruly. The student was acting like a bronco in class.