I'm struggling to think of any computer terms that aren't repurposed 'normal' words, initialisms, acronyms, or portmanteaus. Even the words 'computer', 'program' and 'code' are repurposed.
Ah but it says, "The term originated as a whimsical irregular form of the verb think." but without citation. Hmm, I dimly recall some hacker wag saying something like, "it's the sound of a continuation hitting the stack"...
