A mental illness where everything you think of has a sexual and/or inappropriate meaning. It is also known to bring random fits of laughter and psychotic voices that no one can replicate!
The act of a male sticking his genitalia in a Dyson Airblade.
The act has a better effect, and is more believable if you have photographic evidence.
The female alternative is a Dyson Air Boob, where a girl sticks her boobs in a Dyson Airblade.
Therefore the abbreviation DAB works for either gender.
Brad: "Dude! Last night at the sushi restaurant they had a Dyson Airblade! After a full $5 pitcher of beer and a couple shots of sake Mark and I totally went Dyson Air Balling. We have pictures!"
Steven: "That's awesome! Next time, I'm going with you!"
I woke up late, had a flat, the cat threw up on me, I lost my change in the vending machine, the boss bitched me out, got stuck in traffic on the way home, my girlfriend broke up with me and took the X-box, the computer crashed and I'm out of vodka. Today was a "Dyson day".