Jap bike
Refers to a woman who is either ugly or has a shitty reputation that you fuck,just for fun,but you don't want to be seen with by your friends. Analagous to Harley riders who occasionally will ride a Japanese bike as long as nobody sees them.
I picked up this ole Jap bike the other night and made her ride in the car trunk to the motel over in Siler City.After I fucked her,I left her half enough cab fare to get home.
Jap Bike
Motorcycle manufactured by the big 4 Japanese manufacturers. Honda, Kawasaki, Suzuki, Yamaha.
I used to be a Brit Bike die hard, but i bought a Jap Bike and haven't looked back.