podmazivati

1. to lubricate; to oil; to grease
   Lanac na biciklu treba redovno podmazivati. — A bike chain needs to be oiled regularly.
2. colloq. to bribe; to grease someone's palm
   Godinama je podmazivao službenike da dobije dozvole. — For years he greased officials' palms to get permits.
   Ovde se ništa ne završava bez podmazivanja, a on stalno podmazuje. — Nothing gets done here without bribes, and he's always greasing palms.

In the bribing sense: podmazivati + acc. (whom).