Something that is bad and ridiculous at the same time.
Neither word alone can correctly describe what you are describing, and therefore you need a combination of these two words.
James: Dude, I didn't do my homework again! This is like my 3rd time...
Jason: Wow, you are terribad. Why don't you ever do your homework? That's badiculous!
James: I have to freakin eat lunch with my teacher because I didn't do my homework! Jason, why do I fail at life?
Jason: You are badiculous. What the hell is wrong with you.