lajati

1. (of a dog) to bark; to yelp
   Komšijin pas laje celu noć. — The neighbour's dog barks all night.
   Zašto pas laje na poštara? — Why does the dog bark at the postman?
2. derog. (of a person) to yap; to babble; to snap at; to badmouth; to speak ill of someone
   Ne slušaj ga, on samo laje. — Don't listen to him, he's just yapping.
   Šef stalno laje na zaposlene. — The boss is always snapping at the staff.

At someone: lajati na + acc.