One who acts in a
disturbing or gross manner. Usually referring to
somebody who talks about
sexual acts.
sikko is used in Turkish to refer to works of poor quality or absurd, stupid issues. For instance, people say: "sikko sikko işler" when they
experience some absurd or stupid problems. It
literally means "of poor quality". It is also used for people with a similar meaning to
dickhead. It also has other usages but these two are the most common ones.
sikko sikko işlerle uğraşıyoruz.