Any walking thesaurus types out there? (character flaw)

Its like an obscure phase used to describe when some one has a character flaw, it might also be called this???

I used to love this phrase now I’ve completely forgot it.

Please help I’ll know it if I see it.

Thanks.

Perhaps if you gave us a few examples of where this might be used…?

hamartia???

And there’s also “clay feet.”

Is it hamartia?

Bah, on preview. Earl Snake-Hips Tucker beat me when I got the link.

CLAY FEET! thats it! thanks Earl…