“My old one's kind of worn-out-looking.”

You want a new phone. You're trying to explain why to your husband. You say:

My old one's kind of worn out-looking.

my old (something)

You can call something that you own "my old ___" after you buy a new one, or when you're starting to think about buying a new one:

I think I'm going to trade my old car in for something newer.

My old computer was so slow compared to this.

kind of (adjective)

"Kind of" means "a little" or "somewhat". It's often used in spoken English. For example:

I'm kind of shy when it comes to the opposite sex.

The pronunciation of "kind of" sounds like "kinda".

worn-out

When something is "worn out", it means that it's been used a lot. It probably looks old and might not work very well anymore because it's been used so much:

All I had to wear was an old worn-out pair of jeans.

We're replacing our old worn-out washing machine and dryer.

You can also say that you are "worn out". This just means that you're really tired:

When I get home from work, I'm worn out and all I want to do is lay on the couch and watch TV.

(adjective)-looking

This is a useful phrase when you want to describe how something looks with a word that doesn't usually describe the appearance of something. Some examples:

burnt-looking

painful-looking

delicious-looking