I've compiled different images of my favourites, I hope you enjoy.
??!@!
Gets the point across, I suppose

Fraud Boy
Sorry, I don't speak Chinese

Took his shoes to the Pokécentre

Stop being a D-
Oh, the expression
Speech impediment
Perhaps she just doesn't know her ear from her wrist
Can't be arsed to type proper feedback
You probably shouldn't have eaten jewellery...
Care to elaborate..?

Dun did dat derp
A conversational nightmare
Buyerphobia
Will be seen on milk cartons in the morning