A
person who turns up their music so loud you can hear the bass
outside of the area it is being
played, especially in your own apartment/house/car.
"Man, I got no
sleep last night."
"Why?"
"The basstard who lives above me was at it all night with that obnoxious
techno music."
"The basstard's still alive?"
"Yeah."
"Then whose
coffee did I poison...?"