oaf

noun

A person regarded as stupid or clumsy.

In popular superstition, a changeling; a foolish or otherwise defective child left by fairies in the place of another carried off by them.

A dolt; an idiot; a blockhead; a simpleton.

Originally, an elf's child; a changeling left by fairies or goblins; hence, a deformed or foolish child; a simpleton; an idiot.

A clumsy or awkward person.