Cloud up, to cloud up, or simply just cloud is to smoke a substance. The substance can range anywhere from bud to black star, depending on the region, but is usually in reference to Meth (again; depending on the region.)
by TakingDownVentus February 26, 2013
A fermented gas released from the anus of a Mexican fast food patron, that causes a stench unmatched by anything else in the world.
I was about 15 feet away in a well ventilated area, but that taco cloud still hit me, and I threw up a little in my mouth.
by Esophageal feces May 08, 2010
The best RuneScape private server leader to ever grace the scene. Often described as "The Chemist" due to his immeasurable IQ and talent of hybridding. His indomitable reign lasted seven cycles of the Earth circling the circumference of the Sun (2010-2017). Forever we will always remember Purple Cloud the Great Conqueror of Gielinor.
by Profash February 07, 2019
In the t.v show lost, the strange black cloud and the one random polar bear merge together to form and epic Bear Cloud. This amalgam of two great forces proceed to devour and destroy every single person on the island. This ending would have made a lot more sense than the actual ending....
epic as Bear Cloud action last night on lost ey, pretty much bear-clouded the shit out of that island for shit" "yeah mate the Bear Cloud is way better than the first crap they tried to feed us as an ending, shiiiiiiiiiit.... epic
by Bear Cloud Boorhaman June 09, 2010
by neil donaghy November 15, 2003
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A name brand for a "bath salt" used for recrecreational drug use that mimics the effects of cocaine, ecstasy and methamphetamine. Usually snorted but sometimes smoked, vaporized,administered intravenously or even eaten. It is currently legal in some states. It can be purchased in 250 mg. packs at local smoke shops, gas stations and corner stores for $10 - $20 per pack. Does not show up in standard drug screens.
He man lets go to the store to get some Cloud 9 ..I need a hit. I ran out of blow... dat shit is da bomb !
by meanbone March 25, 2011