So dumb that your life is in imminent or prospective danger
Your stupy
When one is a Stupy Chum they simply are a person where the elevator does not reach the top floor. A Stupy Chum is a person who is not intelligent by any means necessary.
Oh my god, Lara always forgets her keys she is such a Stupy Chum!
That mother is one Stupy Chum, she really named her daughter Tina.