paint the town red [idiom]: to go out and for an enjoyable night; to go out drinking, dancing, etc.
gossip [verb]: to engage in gossip; to spread rumors or stories
play fast and loose [idiom]: to behave in a clever, irresponsible, and/or dishonest way
talk shop [idiom]: discuss matters concerning one's work, especially at a social occasion when this is inappropriate
get the ball rolling [idiom]: to set an activity in motion; make a start
blow off steam [idiom]: to get rid of strong feelings or energy
rub elbows (with) [idiom]: to associate or come into contact with another person
break the ice [idiom]: to do or say something to relieve tension or get conversation going at the start of a party or when people meet for the first time
escape room [noun]: a room in which people are locked in order to play a game requiring them to solve a series of puzzles within a certain amount of time to accomplish a goal, typically finding the key to unlock the room
bar crawl [noun]: is the act of visiting multiple pubs or bars in a single session
socialize [verb]: to participate in social activities; interact and spend time with others
showbiz [noun]: short for show business; the entertainment industry, including movies, television, popular music, and theater