An abbreviation of 'sick in my mouth'.
'Oh my God, don't look. The guy I kissed last night is over there... He was such a bad kisser, he makes me simm.'
by Letsplayalovegame August 29, 2009
by basterdchildrenofthewing March 08, 2010
by Freddie_Mercury January 02, 2005
by CrazyCheesyChester May 21, 2010
by jonny bob May 21, 2004