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To have the sensation that, while sleeping, feels like someone is performing oral on you. You would swear up and down someone was actually doing it, but when you wake up, there's absolutely no mess leaving you to wonder if you got blown and the fairy cleaned/swallowed the mess.
"Dude, I swear to G** that I got a blow job last night, but there wasn't any cum anywhere."

"Oh, you must have been visited by the Blow Fairy."
by fval321 January 03, 2010
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