The act of dry-humping a girl with your right knee, while simultaneously dry-humping a second girl with your left knee. There are many ways in which this can be accomplished, including underwater.
"I'm pretty sure Tabb will never walk again, he blew out both his knees trying to nebulize Hillary Duff and that Hannah Montanachick"
nebulise v. : to supply a poorly informed/gullible consumer of recreational drugs with a similar looking, though highly dangerous substitute, leading the unfortunate to a state of nebulation
That kid won't let it rest asking for a score of Ket. He getting nebulised with rodentkiller
A device used in analytical chemistry and scientific research to convert a liquid sample into a fine aerosol or mist of droplets. Also, it is used for medical purposes for some reason.
Man 1: Analytical nebulizer is ready to go!
Surgeon 1: You just burned down a hospital.
A trip to a grocery store, convenience store, or gas station for the sole purpose of buying an excessive amount of junk food and sugary drinks, usually with friends. A chud run often happens late at night and ends with everyone involved hating themselves afterwards.