|1.||I'm pretty sure|
When a piece of shit doesn't know what he's talking about but wants to make it sound like he does without facing penalty of being incorrect. S/he hides behind of veil of faggotry for protection from persecution by his/her peers when it turns out they're wrong by precursoring something they can't guarantee by saying "I'm pretty sure".
Alex: Can I return this broken iPhone to the Apple Store if I've never used it?
Faggot: I'm pretty sure you can.
Samantha: When is the final for this class?
Faggot: I'm pretty sure it's this Tuesday.