Do you know anyone like this

There's these people who pretend they know everything. Like you say "Have you heard about [b]X[/b]" and they'll be like "Oh yeah, I've already heard about/read/watched it on the radio/newspaper/tv" every single damn time.

And you know they're bullshitting because occasionally you'll make up something on the spot that's completely fake and they'll be like "Um yes, I already knew about that".

Uh no, you didn't, because it didn't exist until two seconds ago.