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1.
1) A crude, but highly alcoholic beverage. Similar to Moonshine, but much more potent, with an alcohol content similar to Everclear (180 proof), but less refined. It is called boomshine because it has a tendency to explode, do to the high amount of alcohol vapor produced

2) A more potent version of moonshine, known to get people drunk off the vapors alone.
Jim Bob took one wiff of Bubba's boomshine and fell flat on his face.
by Ted December 06, 2004
72 7
 
2.
Homemade alcohol also more commonly known as Moonshine
Man that was some sweet Moonshine
by lazyassloser March 25, 2004
17 34
 
3.
An alcoholic, explosive vodka
Yo bizzle, dat boomshine is fugly
by cheap ass beatch April 03, 2003
9 41