JDM
Japanese Douchebag Market. Use to describe import cars from japan. Theses vehicules ( the nissan z or skyline, the toyota supra/celica, datsun bluebird and the civic) ares way overated by people who affirme that they are better than supercars and muscle cars in term of performance/price ratio. This expression is also very use by Ricers (people who can't make a decent customisation on their rides).
My JDM is sickbro she's gonna beat your mustang up!

well, we will see...