"threw her down the river"? Is that slang?
Nah, I actually killed her.

(For those that would take me seriously, yes, it is "slang". What happened is that when I wanted to quit a science project and do it on my own [
not because she wanted a thing with me], she freaked out to over-whelming proportions, yelled at me, threw her books at me, and called me a bitch. Yeah. I stopped hanging out with her. I was upset because I thought she wasn't violent, even though a very large amount of the school thought so. Baaad experience.

)
Sorry for the severe amount of heart palpitations.