by kpbostonianakamrsadams June 22, 2009

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
