it means terms that are used to insult someone or imply something negative. (god why is this not in here yet?)
some of derogatory terms(words):
asshole(ex.you are a fucking asshole) cuntface(ex.you are a fucking cuntface you!) dickbutt(ex.you are a fucking dickbutt you!)
kitkat(ex.you are a fucking kitkat you!) control panel(ex.you are a fucking control panel)