I don't no - It's when you're so f***ing clueless, you think you're being

It's when you're so f***ing clueless, you think you're being smart, but you're actually just being annoying.

"What? You don't no? Oh my god, you just worked it out!", @mike234

"I don't no, and I'm not even slightly happy about it.", @lisa890

"Oh my god! You just worked it out!", @anna789