Similar to human garbage, but the difference is that a garbage in human form is in essence a garbage that's pretending to be a human, while human garbage is a human whose worth is about the same as a garbage.
Kitten A: Sally didn't feed us for 3 days. She's such a human garbage!
Kitten B: No, she's a garbage in human form.
Kitten A: what's the difference?
Kitten B: Read urban dictionary.
Ginger chat bot by day, deadly assassin robot by night. I, Human resides in the turntable.FM Pure Drum & Bass room. Be nice to him he willgrant you a spot on the queue. But is you piss him off or spam him he will kill you.