Bad Blood is ruthless.

I haven't seen somebody so successfully snatch anyone before this.

Diss song? I'm still convinced that the song is about when her vagina is on her period.

Now we got problems (Bitch is now on her period)
And I don't think we can solve them (She ran out of tampons)
You made a really deep cut (That's what she gets for scissoring with Lorde
And, baby, now we got bad blood ( ewww)

Bad Blood isn't really a diss song though, I like it more though