“My wife'll kill me if I don't get home soon.”
You're out drinking with your coworkers on a Friday after work. You've stayed for a while, but you need to go home because your wife is expecting you. Your friends want you to stay, but you refuse by saying this.
My wife'll kill me if I don't get home soon.
When you say that someone will "kill you" if you don't do something, it's not meant to be serious. It's an exaggeration. It means that the person will be very angry with you and will yell at you:
A: Do you have any tattoos?
B: No way. My parents would kill me!
Use this phrase in informal situations, like when you're talking with friends.
When you want to describe the action of travelling home, you say "go home":
I'm going home now.
But when you're emphasizing the result, you say "get home":
I want to try to get home before six tonight so I can make Jessie's birthday cake.
As soon as I get home, I change into my sweatpants, pour a glass of wine, and curl up on the couch with a book.