Derpy

[Couch Potatoe]

Clumsy or uncoordinated; prone to cause accidents likely due to some, often humourous, mental lapse.

[Mark Zuckerberg]

Not all there in the head; possibly lacking intelligence or common sense. The wall-eyed background character in My Little Pony: Friendship is Magic, Derpy Hooves, is named after this.

[Tina]

Ridiculous; Random; Silly usually to describe another person or image.

[Tanya Shivari]

A pony that is from My Little Pony

[Zipporah Schumaker]

Foolish or stupid.

[Donald Trump]

The name of a female, greyish, [winged], yellow-maned [Pegasus] pony from [Equestria] and the My Little Pony world.

[Dave Paprocki]

Derpy means, quite [weird] or [awkward], but also [sort of] funny at the same time.

[Oralee]

Being just the slightest [bit] off. Having a [clumsy] way [about it].

[Raeanne Dimick]

Looking [slightly] [retarded] in [a picture]

[Mary Mallozziberg]

To be [inefficient], slow, unable, [inexperienced], not working correctly, stupid, [naive], etc. A word that usually takes the place of retarded.

Can be pertaining to a person or a thing.