A group, usually a political party, that is allied against a common enemy or opponent but whose internal disagreements and attacks end up doing more damage to each other than to their target. The lead up to the presidential nomination saw the party devolve into a circular firing squad, as each candidate's vociferous bid to unseat the incumbent president ended up creating huge divisions and disarray within the party itself.

A group of people hired or acting for the purposes of enforcement, protection, intimidation, and/or harassment on behalf of someone else. Primarily heard in US. After Mr. Smith refused to pay the mafia protection money, they sent a goon squad around to rough him up.

One's group of close friends. I'm going to the party tonight with my squad.

The aspirations, desires, or values of one's group of close friends, often illustrated in an image posted on social media that is captioned with the phrase as a hashtag. Check out this selfie of Jenny and her friends at the library. She hashtagged it with "squad goals." See you all bright and early tomorrow at the protest! #squadgoals

A group of individuals within a unit or organization who do not cooperate, accept change, or act in the group's interest, either deliberately or due to incompetence. This awkward squad of senators is causing headaches for both parties.

I really do not want to (do something). A firing squad is a group of people assigned to execute someone by gunfire. The phrase hyperbolically implies that the speaker would rather face a gruesome death than do what is being discussed. I'd rather face a firing squad than do another presentation for the board. Last time, they found an error in my report and screamed at me for it.