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3.
In the same vein as gangbang, except instead of intercourse the person gives blowjobs to all the males, often resulting in a mess of ejaculate on the givers face, or mouth, or torso (preferred).
Dude, your girlfriend swallowed all my cum at the blowbang last weekend!
by Ryan6000 June 15, 2009
 
1.
In the same vein as gangbang, except instead of intercourse the girl gives blowjobs to all the guys, often resulting in a mess of ejaculate on her face, in her mouth, or in her tummy (preferred).
Dude, your girlfriend swallowed all my cum at the blowbang last weekend!

Oh yeah? Mine too!
by SpermProvider July 15, 2006
 
2.
The act of preforming fellatio on 4 or more men at one time.
"That drunk whore Charlotte sucked 6 guys dicks in that blow bang last night."
by Mr. Pink 99 January 25, 2008