Peeping Chuck

Pretending to be active pounding out a text, playing games or the like on your smartphone when in actuality your in the camera setting and taking a snapshot of an unsuspecting individual.

While sitting at the bar the bartender leaned over to wash some glasses and I snapped a peeping chuck.

fknowledge

When someone attempts to fake their knowledge of a fact or subject.

Teens are always spewing fknowledge.