galehead
A galehead is someone who gets ideas as fast as a hurricane hits a beach. They’re not just thinking, they’re thinking with a rage of a thousand raged-out teenagers.
'You think you’re smart? I got three ideas before you even blinked.'
'He’s a galehead. I’ve seen him solve a math test while eating a taco.'
'She’s got a galehead. I swear she came up with a plan to rob the bank while I was still counting the money.'