Rice burner is a pejorative term originally applied to Japanese motorcycles and which later expanded to include Japanese cars or any East Asian-made vehicles. Variations include rice rocket, referring most often to Japanese superbikes, rice machine, rice grinder or simply ricer.
The term is often defined as offensive or racist stereotyping. In some cases, users of the term assert that it is not offensive or racist, or else treat the term as a humorous, mild insult rather than a racial slur.