To hit something with a force on the head.
Yakul: Hammy has pissed me right off
Greg: Just badonk them next time you see 'em.
Yakult: You know what, maybe I will. :)
*Yakult uses a plank of wood to badonk Hammy unconscious*
OR
*Yakult badonks Hammy till his teeth fell out*
3👍 8👎