smoking cocain or meth,clouds are the exhaled smoke
lets blow clouds and have wild sex !
by Rick H April 07, 2007
Blowcloud (noun): the equivalent of getting a blow job while driving an automobile, but only the service is given in the cockpit while flying an airplane
the stewardess gave the captain a blowcloud during the long flight to san antonio.
by apirate21 February 09, 2011