Do you know anyone like this

There's these people who pretend they know everything. Like you say "Have you heard about X" 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.