An abbreviation for oh shit
"Os! Do you smell baby Sarah? I thought I changed her a few minutes ago."
"Os?"
"I don't wanna cuss in front of the child."
"Os?"
"I don't wanna cuss in front of the child."
by kpbostonianakamrsadams June 22, 2009
by kpbostonianakamrsadams June 22, 2009