Don't give me attitude！ 偉そうにするな！

50％まで読みました。Defending Jacob。

She wore black spandex leggings and an oversized T-shirt with an equally oversized message stamped across the front:Don't Give Me Attitude, I Have One of My Own.

give someone attitude：（人）に対して反抗的な［偉そう・威張った・高慢な・気取った・突っ張った・不愉快な］態度を取る

The apartment was small and cluttered.
clutter:乱雑
cluttered:散らかっている

What do you keep haranguing him for?
harangue:長い説教、長い説教をする

Then we may want to bring in the genetic evidence as mitigation.
mitigation
名詞不可算名詞
1緩和，鎮静 〔of〕.
2〔刑罰などの〕軽減 〔of〕.

When I first met Derek,he was five years old and still pudgy.
pudgy:ずんぐりした

He found this dog, just like, a mutt.
mutt:アホ、雑種犬

Her face was gaunt.
gaunt:ゲッソリした