Answer: popin

AnswerCrossword Clue
POPINCartridge type
POPINMake a surprise visit
POPINDrop by unannounced
POPINMake a surprise visit: 2 wds.
POPINEnter suddenly.
POPINVisit unexpectedly.
POPINEnter informally
POPINMake an impromptu entrance
POPINMake a quick visit
POPINStop by briefly
POPINMake an unannounced call
POPINMake a brief call
POPINBriefly visit
POPINAppear uninvited
POPINMake an appearance
POPINCall on unannounced
POPINCall briefly
POPINSwing by unannounced
POPINArrive without an invite
POPINStop by
POPINDrop by for a sec
POPINArrive unexpectedly
POPINVisit unexpectedly
POPINVisit spontaneously
POPINVisit by surprise
POPINSurprise with a visit
POPINVisit unannounced
POPINDrop by
POPINStop by unexpectedly
POPINSurprise at the door
POPINShow up unannounced
POPINReady for quick insertion
POPINStop by unannounced
POPINDrop by unexpectedly
POPINVisit without calling first
POPINVisit briefly