The word or phrase blap-blap, meaning or symbolizing the firing or discharging of a firearm, come to us from the New Age Ebonics Speak.
The motion that follow or coincides with this phrase is that of holding a firearm in it's
horizontal position, with the sights and magazine pointing West-East. The phrase is being rapidly picked up by young, Caucasian males who believe they are, in fact, part of
the society and group of which this phrase comes from. Word found floating around this word happen to be rather harsh or negative is style, and consist of slang and curse words.