Question

my little brother is such a scaredy cat. without my glasses, im as blind as a bat.

Explanation:

These are idiomatic expressions. "Scaredy cat" is an idiom meaning a timid or easily - frightened person. "As blind as a bat" is an idiom used to describe someone with very poor eyesight.

Answer:

These are idiomatic expressions. "Scaredy cat" means a timid person. "As blind as a bat" means having very poor eyesight.