Oh shit. 'O' is said in a high pitched voice and 'shi' is said in a high pitched but slightly lower pitch than the 'O' - and is said for an extended period of time, could be indefinite. Meant to signify surprise, something funny or something lame.
by Rich Shi July 25, 2008
Get the O shiimug. by get shook shistar September 24, 2018
Get the bored as shiimug. An uncommon durogatory comment that can also be used in non-durogatory situations. Commonly used by Super Magana.
by The REAL Dylann April 24, 2006
Get the aww shiimug. by The Real Christian E. April 30, 2022
Get the On some real shiimug. by squints1234 January 29, 2018
Get the fucked up shiymug. by The Real Christian E. May 16, 2022
Get the on some true shiimug. 