[Oh, absolutely- And despite his skill and considerable prowess in gymnastics, an aptitude he had even prior to obtaining superpowers... His ego tends to be what does him in, leaving Rex open to making many a stupid mistake.]

Intimidated? Ohhh, no!

[Rex lets out one final spiteful laugh.]

Don't get it twisted!

[That was absolutely what he meant, he is just a cantankerous asshole.]

I'm just tryin' to "set expectations," as my friend with the nuts n' bolts up his butt would probably say.

[It doesn't matter that Raven doesn't know Robot, Rex is going to use the joke anyway for his own enjoyment.]