The idiom for "go together" is "hand in hand." This phrase suggests that two things or ideas are closely connected or related, often complementing each other. It can be used in various contexts, such as relationships, concepts, or activities that naturally align or support one another.
An idiom for bonding is "spending quality time together." Or, "Let's stick together."
cooperative
This is not an idiom. It means just what it sounds like -- remain together in a group instead of separating.
The phrase "pull myself together" is an idiom.
The sentence is not, because an idiom is usually a phrase. The idiom is "do lunch," which means to have lunch together, usually while discussing business.
Yes because you are not literally hitting a sack.
adds up, makes sense
To figure somrthing out from the information avaiable
Do what ever you want to do.
Don't go bananas when I tell you what I know.
it means go to sleep
It means to go faster