1. get down to
Meaning: Start working seriously
Examples
A: Are you ready to start?
B: Yes. Let’s get down to business
2. the nitty-gritty
Meaning: The important facts or the important details
Examples
A: So how was your date with your new boyfriend?!
B: Do you want to know the nitty-gritty?
3. get down to and the nitty-gritty
Examples
A: Let’s get down to the nitty-gritty
B: Good idea. Let’s not waste any time.
