To just hang out and bull shit about random stuff.

To chat idly about things that neither person involved in the conversation will be likely to remember.

Discussions centered around useless shit, especially when the agenda is to do nothing, or keep yourself from doing something you should be doing.

shortened: "Shoot it."

To talk idley about nothing in particular

- Phrase. To engage in a useless activity, usually conversation without any emotional or instructorial value.

Inject heroin in your veins and go down the spiral.

Shoot The Shit means to consume spirits, such as whiskey/vodka etc. with another person.