drop in


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drop in (on someone)

 and drop in (to say hello)
to pay someone a casual visit, perhaps a surprise visit. I hate to drop in on people when they aren't expecting me. You're welcome to drop in at any time.
See also: drop

drop in

also drop by
to visit briefly About 100 guests dropped in to celebrate the publication of his book.
See also: drop

drop in

v.
1. To let something fall into some other thing: I dropped some spare change in the beggar's cup. I took some rocks to the hole and dropped them in. Don't push the latch down into the lock; just let it drop in.
2. To come to some place for a casual visit: We'll drop in and see how you're doing tomorrow. Should we drop in on our neighbors tonight?
See also: drop