There was a Bart Simpson t-shirt my mom bought me when I was a kid. Bart said: Underachiever and proud of it.

I remember radio ads for some bullshit corporate product service bullshit, the announcer said "It's a no brainer!", and the simpleton character, meant to stand in for all of us, goes "Uhh... no brainer? Oh I like that, hyuck hyuck hyuck!"
I remember this ad making me angry. Then also being vaguely disturbed when I noticed that this cynical marketing profile was all over the place.