adjective:

a round, muscular buttock of prehistoric proportions; named after the Megaladon, a prehistoric marine creature known to have the most powerful bite in history.

a megladonk is said to be categorized better than a donk but less amazing than a sauroposeidonk; which is the classification of an amazing, plump epitome donk

When some little bitchboy is acting like a little tiny pee pee poo poo baby and messing up the group plans.