어디서 눈을 부라려? 눈에서 레이저 나오겠다. 레이저를 쏘네.

어디서 눈을 부라려? 

When expressing anger or glaring,

we say "glare at..." "눈을 부라린다" 

We also say "glare at ..with angry big eyes." "눈알을 부라린다"

Example:

Scream and glare at

"어디서 눈을 부라려?" means How dares to raise your eyes in anger! 

눈에서 레이저 나오겠다. Lasers are coming out of his eyes.

레이저를 쏘네.  He's shooting lasers out of his eyes.

This is an expression that can be used when you are angry, and also when you are concentrating.