To be buck-ass nekked when the door to a public area suddenly swings open. Coined on "That show about a Trailerpark" or whatever, the incidence of stalefishin amongst the 18-30 male population of earth is surprisingly high. This may be due to economic factors, as most dudes of this demographic find themselves rooming with other people of a similar age because all the good jobs that used to be Union and pay a Living Wage have been shipped overseas in the decades since Reagan.
"I went into Jimbob's room to get my cigarettes back and found him straight stalefishin in front of the mirror practicing his best Reagan pose with the help of his new penis pump."
by Spanky MacDoogle June 7, 2012