1) Usually a brand name of curly crisps what kids/teens/adults have in theirl lunces or snacks. Very cheesy but oh very nice
2) Sometimes means "crazy" or "wacko" if some-one does something completely idiotic.
3) Sometimes meaning "bitch" "slut" or "slag" but not always regarding that person or not
4)Some-one who's either nervous, sensitive or fragile
1) Dude: I'm hungry, I think I might have some Quavers
2) Dude 1: Did yo see that crazy chick today?
Dude 2: Yup...she was Quavers
3) Girl 1: OMG! You are so a Quaver
Girl 2: Meaning what?
Girl 1: A bitchy-slutty-slag of course!
4) Dude 1: Why are you so Quaver today?
Dude 2: It's our maths test dude and I'm Quaver because I feel nervous