B.F. Wangs is a Chinese chain restaurant, a parody of P.F. Chang's. The restaurant was mentioned in the episode iStage an Intervention. (Carly and Sam announced on their web show that whoever could find Sasha Striker would receive a survival knife, a picture of a pregnant guy, and a $10 gift certificate to B. F. Wang's.)
The restaurant has also been mentioned, and even seen, in one of Dan Schneider's other Nickelodeon shows, Drake & Josh. (Gavin mentions that one of their foods is moo-shoo.) This place has not been seen on iCarly, but Victorious.
The restaurant is mentioned in yet another Nickelodeon show by Dan Schneider, Victorious; Cat Valentine says they sell "Bang Bang Noodles". Andre was to meet his date there while the gang was being investigated to find out who had caused Trina's accident during a play