Overview
A parody advertisement should not be confused with a fictional brand name used in a program to avoid giving free advertising to an actual product, or to the use of a fictional brand name in an actual advertisement used for comparison, which is sometimes done as opposed to comparing the product to an actual competitor (in some countries, (Germany or Norway for example) it is illegal to make disparaging comments about a competitor's product in an advertisement, even if the statements are proven to be true.)
A parody advertisement can be one in which the advertisement appears to actually be a real ad for the false product, but then the advertisement is somehow exposed to be a parody and if it is an actual advertisement the actual brand becomes clear. If it is simply a parody it may or may not indicate that it is one.
Read more about this topic: Parody Advertisement