Describing someone or a group of people who cuss a lot.
Joe: F***ing D***it you F***ing B****!!!
Bob: Woah, dude, you're very swearative today.
Jill: Yeah, Mrs. Hayfer and Mr. Lang kept telling us all to shut the F*** up.
Hana: Mr. Jones and Mrs. Hiller kept cussing at us too.
Jill: The teachers are really swearative today.