Being taken to an isolated, windowless room with the intentions of intimidating, influencing, and/or beating you.

The place in a club, most common a gay club, in which sex happens

A back room can be defined as either a sex room or a game room.

When it is a sex room, the partners, or party, partake in "activities" of which genitalia meets genitalia. This is often referred to as back room sex.

When it is a game room, the user of this room participates in playing various video games. This is often referred to as back room gaming.

A scary place for most Jehovahs Witnesses. Most Kingdom Halls (their churches) have one or two rooms in the back where:

1. Parents spank their kids for making noise or not sitting still during the meeting.

2. Elders have private “judicial hearings” on members who have committed a sin. These hearings determine whether they are allowed to stay a memeber, or if they will be disfellowshipped (excommunicated and shunned).

The act of being beat up by bouncers in a back area or room.

The group of boys that is always present in the rear of every high school classroom. Usually consists of at least 3, but can be a bigger group. There's typically the group leader, who tells the best jokes, and who causes the most chaos during class. There's also the team player, who takes notes and sometimes brings food for the group; playing a crucial role as the "support member" of the group. This allows other group members to goof off, knowing that the team player has their back later on when they're doing homework or studying. The remaining member(s) are the munchers, who consume vast quantities of food during their occupation, even if they aren't hungry. This is usually done in an attempt to piss off the teacher, or to get a few good natured laughs from their classmates. Sometimes they also provide "belching fire" to distract the teacher so other members can engage in hooligan behavior, such as hitting a vape under the desk, or shooting spitballs at the ceiling.