Quote from Hambeau
Kind of reminds me Disney's "Meet the Robinsons"...
The bad guy brings a T-Rex to the future to do his dirty work. T-Rex fails. Bad guy asks "how can this be so hard?"
T-Rex replies (via a brain amplifying bowler hat) "Huge, powerful body, tiny little arms."
This is all paraphrased, I haven't seen the movie in a bit.
I think it's something like: "I have a big head, and tiny arms. I beginning to question, how well this plan was thought out."