drop_in
1. [ verb ] visit informally and spontaneously
Synonyms: come_by drop_by
Examples:

"We frequently drop by the neighbors' house for a cup of coffee"

Related terms: visit
Similar spelling:   dropping
  drooping
  dripping
  drive_in
  droppings
  drippings
  droopingly
  drippiness
  Drovin
  driving
  Drepanis
  dry_pint
  drubbing
  drip_pan