A design, action, or decision that is clearly incorrect or
inappropriate. Often capitalized; always emphasized in speech as if
capitalized. The opposite of the Right Thing; more
generally, anything that is not the Right Thing. In cases where ‘the
good is the enemy of the best’, the merely good — although good
— is nevertheless the Wrong Thing. In C, the default is for
module-level declarations to be visible everywhere, rather than just within
the module. This is clearly the Wrong Thing.