pecati

1. to fish; to angle
   Deda svake subote peca na Dunavu. — Grandpa goes fishing on the Danube every Saturday.
   Ovde najčešće pecamo šarane i somove. — We mostly fish for carp and catfish here.
2. colloq. (of flirting, dating) to try to pick up; to hit on
   Peca devojke po klubovima. — He tries to pick up girls in clubs.

The perfective upecati means "to catch (a fish)" and colloquially "to hook, land someone".