A: she told me she's coming over to pick me up at 10 to go clubbing, at 9:45 she called and said she wasn't up for it anymore.
B: Wow, lame, the bitch ditched you.
Originally meant to refer to a girls vagina being a ditch. This word has become a term to call girls like bitch only nobody knows what youre talking about.. at least not yet. Ditch can pretty much be used in place of anything