Trevor Moore never says "fuck" or "shit" on the program.
Many of the original sketches had to be shot on holidays as that was the only time the troupe could get off of work.
According to an IFC interview, Trevor Moore says that the group's name originated during a freestyle rapping session on a subway, when one of their friends said, "You guys are the whitest kids I know."
During the 'Monster Truck' sketch, everything in the room was breakaway material so everything had to be filmed in just one take. Trevor Moore actually hurt himself when he tried to jump on top of the bookcase.
The fifth and final season of the show incorporated a feature length movie across the ten episodes. The cast members have started work on a separate Whitest Kids U' Know movie. Trevor Moore said on his website in July 2012 that the movie is in the writing stages.