kapati

1. (of a liquid) to drip
   Voda kaplje sa plafona u kupatilu. — Water is dripping from the bathroom ceiling.
   Napolju je počela da kaplje kiša. — It has started to drizzle outside.
2. (of a tap, object) to drip; to leak
   Slavina u kuhinji kaplje celu noć. — The kitchen tap drips all night.
   Detetu kaplje nos. — The child's nose is running.
3. colloq. (of people, money) to trickle in
   Gosti su kapali jedan po jedan do ponoći. — The guests trickled in one by one until midnight.

The subject can be the liquid or its source: voda kaplje, slavina kaplje.