- in
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1. mod. current; fashionable.□ This kind of thing is in now.□ What’s in around here in the way of clothing?2. mod. private.□ Is this in information?□ If it’s in or something, I’m sure they won’t spread it around.3. n. someone in a special position; someone who is serving in an elective office.□ Well, now that I am an in, there’s going to be some changes.□ When Ralph is one of the ins, he’ll throw the crooks out.4. n. a ticket or means of getting in (someplace).□ I lost my in. Can I still see the show?□ Lemme see your in or give me a buck.
Dictionary of American slang and colloquial expressions. 2015.