Wierd Al videos are a parody of an existing property. "White and Nerdy" is a parody of "Riding Dirty" by Chamillionaire, but the lyrics are about nerd stereotypes (as an intentional contrast with black culture as presented in the original,) and a great deal of creative effort is put into making those lyrics humorous while also fitting to the original theme. Nothing about Wierd Al's videos are "totally literal," certainly not in the sense of these AI videos, which are "literal" in the sense of "literally showing what the lyrics are describing."