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1.
Popular Internet acronym. It stands for STep Off Bitch.
My ex-girlfriend said she wanted back the stereo for Christmas so I told her STOB.
by Yahbi December 28, 2006
 
2.
hanging labia, indicating an exceding amount of vaginal traffic
I thought she was a virgin 'til I saw that gnarly stob hanging between her legs.
by Sam Sugar May 01, 2005