Less serious than getting together or dating. Spending time with someone in the context of friendship or in the context of casually exploring whether you like someone as just a friend or maybe more than a friend.
I'm gonna hang out with my best friend this weekend. We should hang out some time.
by Caleban August 8, 2006
verb (informal)
to socialize with in public

Comes from the formal meaning of "hang out": to protrude or stick out. Hence, the use of "out" for public. Not to be confused with "hang with", which is an umbrella term that includes socializing publicly or privately.
Friend: "Dude, you never hang out with me anymore."
You: "Not true: even though I don't get out of my house much, I still socialize with you on Facebook, which can be seen by other people."
Friend: "Touché."
by Prior Analytics March 9, 2012
anything from eating and sleeping to riding bikes and playing football
by Anonymous August 9, 2003
According to Aileen Ward's biography of John Keats (English poet (1795-1821), who took an interest in English slang of the day, "hanging out" connoted "stopping at a tavern," i.e. spending time drinking, which fully comports with the modern sense of the slang expression. This indicates that the phrase was current in London in 1816 at the latest!
"Hey, Keats, man: Byron and some of the other poetic dudes are planning to hang out at Jack Straws before we go to sup. Like to join us?"
by Prince Andrey July 14, 2009
To have casual sex, usually implying with someone on the regular.
Is that what the kids are calling it these days? Hanging out?
by Stroll August 31, 2004
usually referred to chillen wit ones friends but also can be used as code in front of ones parents to mean "lets get messed up tonight"
hey.. u wanna "hang out" or just chill?
by Anonymous November 29, 2003
code word for "lets go out!" or "were bf and gf cuz were hanging out"
Me and my girl are going to hang out together.Translation me and my girl are going on a date. Me and her are going to hang out at my place = me and her are going to do it at my house.
by adefuin February 26, 2008