brass tacks
the main point of a discussion, the focal point of something being addressed
"anyways, enough talk about the weather McGruder...I'm sure you know why I called you into my office....let's get down to brass tacks, shall we?"
get down to brass tacks
In the trading posts of the old west, the shopkeeper measured out a yard on his wooden counter and inserted two brass thumbtacks. He used this to measure off "yard goods" such as fabrics and rope. So to set the price he first had to get down to brass tacks.
You've selected your fabric, so let's get down to brass tacks.
get down to brass tacks
Smoking weed; When it's time to smoke a bowl
"Its quarter after four? Almost time to get down to brass tacks"
"Hey, let's get down to brass tacks, pass me a bowl so I can pack one up"
"Hey, let's get down to brass tacks, pass me a bowl so I can pack one up"