1: The sound a car trunk makes when playing a loud
car stereo with huge, high-powered subwoofers in it.
2: Also can be used
the act of playing a song with loud
"Blappin" is a slang word
most commonly used
in and around
the California SF Bay Area. As part of the Bay Area's Hyphy Movement, "blappin" has been used
in hip-hop songs by various Bay Area rappers
such as Keak Da Sneak.
most likely evolved from the word
"slappin" which also has the same definition
in Bay Area slang.