flail long object Brandish branch or other long object. Goodall: Brandish branch in hand and waves this weapon at an opponent. Plooijs FLL. Kortlandts Tree-swish. At Mahale flailing at another rarely done by adult male. Flailing at human observer more rarely done by adolescents. Adult male of Mahale caught, flailed and hit to death monkey or bird against ground. Cf. shake branch. Branch-flailing is element of branch-dragging among bonobos of Wamba. 2. See video. flap Goodall: downward slapping movement of the hand, usually repeated several times, in the direction of another individual. Often seen in flee 79 female squabbles Plooijs Flap. Absent in bonobos of Wamba. 5. flee Goodall Flight: rapid progression away from an alarming or dangerous stimulus Also seen in chasing play. Elements include scream, run,