(noun) one who is oblivious to the obvious, or incapable of understanding the ideas of coherent conversation. Common traits are of the obliviad are mouth breathing and vacant expression.
Kpop Tiktoker: do you know @oliviahees?
Person 2: the one who made a series on army x blinks and is enemies with chuurilla?
Kpop Tiktoker: yep, that's the one!