Fathead

An insult meaning:
A-Someone's head is big and ugly.
B-Similar to poohead but fatness instead of poo; basically a more convenient way of saying 'fatnesshead'

OW THAT HURT!
Don't tough me again with that thumbtack you ugly fathead!

Yers

A really pathetic way to say yes used by random instagram teenagers on posts comments with a random stupid blue heart commonly put next to it.

'Yers g *Blue Heart*'

Bumhead

An insult saying someone's head resembles a pair of buttocks with an anus in the middle.

Stop copying my work you bumhead!

Fat Poo Head

An overweight person with their head resembling faeces (FAT poo head) or a person with their head resembling a large piece of faeces (FAT POO head)

Why did you throw my ball over the fence! I hate you, you FAT POO HEAD I HATE YOU