bullbull /bʊl/ ●●○ noun 1 [countable] a male cow, or the male of some other large animals, such as an elephant or whale2[uncountable] informal something someone says that is stupid or not true: That’s bull. I never saw him before.3take the bull by the horns informal to bravely or confidently deal with a difficult, dangerous, or unpleasant problem [Origin: (1) Old English bula]