BOOB JAM
When a male motorcyclist hits the brakes harder or more frequently than he should in order to have his female passenger thrust her womanhood into his back. Otherwise known as a cheap thrill.
The perv motorcycle rider frequently braked harder than normal in order to have get a Boob Jam from his big breasted passenger.
boob jam
The build up of dust and dirt between the boobs.
"Wow man she stinks of boob jam"