Top definition
An abbreviation meaning "Refer to Sarcastic Black Woman" It is to be used when someone says something that you do not believe and would like them to here you say mmmmhhhmmm in a sarcastic black womans voice.
Evan: "I will not cry while watching Game of Thrones"
Tyler: "I don't believe you."
Evan: "I wont!"
Tyler: "RTSBW"
by Zarock March 31, 2014
Get the mug
Get a RTSBW mug for your guy Yasemin.