How (something) is that?(redirected from how stupid is that)
How (something) is that?
That is very (something). Adjectives commonly used in this construction include "strange," "cool," and "awesome," among others. Did you know that hummingbirds can fly backwards? How cool is that? A: "Frank spent prom night home alone playing video games. How sad is that?" B: "Actually, that sounds pretty great."
See also: how