drop in on (someone)

drop in on (someone)

To visit one casually or unexpectedly. Ever since we gave your mother that key, she keeps dropping in on us.
See also: drop, on
Farlex Dictionary of Idioms.
See also:
  • let something drop
  • on one's
  • on someone's
  • out of one's
  • (I've) got to go
  • save someone's skin
  • (Have you) been OK?
  • #dead
  • other than
  • other than (something)