Someone who lives and breaths photography. Carries a negative connotation. Short for "photo geek".
1. Aileen is such a picteek. She spends the day after her last day of high school in the photolab printing her pictures.
2. "See that picteek over there? She just spent 10 hours working on one photo! like wtf?"
3. That picteek made me pose for 30 minutes trying to get the "perfect picture"