Top Definition
An over the top excellent male orgasm carried out by having one's cock sucked by another person in a thrilling inconspicuous location, or under unusual or daring circumstances.
Jill gave Jack the best Blowgasm ever in his VW on Route 66. He couldn't keep his eyes open as he came. She was so surprised at the intensity of his orgasm, that she coughed and much of his cum dripped into the cup holder.
by 22guy April 20, 2009
9 Words related to Blowgasm

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