Less than confident

A youngster, lacking any knowledge on a subject, yet still promoting the idea.

There performances have little to sway the opinion, Connecticut civilians are less than confident.

No power greater than X

Some kind of Xbox slogan in the early 2000s.

For the soul that burns, There is no power greater than X.

Tracy is better than Greg

When Tracy is smarter and dose everything better than Greg

Tracy is better than Greg when she does her action shot

duller than a dildo

A simile used to describe the sharpness of a knife or cutting tool by comparing it to the sharpness of a sex toy.

Did you sharpen this knife with the rubber? It's duller than a dildo!