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2.
The overly messy explosion of semen, sperm, man juice, etc. all over the face of a woman who has just given a guy head. A cock-gun blast generally gets in the hair, eyes, nose, mouth, and just about anywhere you can think of.
Some whore was lickin my giggle stick and she told me to tell her when. I timed it just right that she pulled away and got a full-on cock-gun blast.
by Otis March 11, 2005
 
1.
The overly messy explosion of semen, cum, sperm, man-juice, etc. all over the face of a woman giving a guy head. To be a proper cock-gun blast, the juice must get in the hair, eyes, nose, mouth, and pretty much everywhere else on the face and other areas.
My ex-girlfriend was takin a lick on my gigglestick one last time and she told me to tell her when I was about to let loose. I timed it just right so that she got a full-on cock-gun blast right to the face.
by Eddie March 18, 2005