Two words that go together....

Love letter

bangers and mash

Rock on

Peas & carrots

Snack time

It's Sticky

You bet

salt and vinegar

Ricky. Bobby.

Because all I could think of when I saw this thread was...

Cal: Me and Ricky, since we were little kids, man. We go together like Chinese food and chocolate pudding. Let’s face it.

Ricky: Yeah, but those are two things that don’t really go together.

Cal: We go together like cocaine and waffles.

Ricky: No, like, for instance, if I say peanut butter and....

Cal: Ladies, right?

Dog biscuit

Peanutbutter sex

Best friend

Precious Time

stove top

First class