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1.
Engineering term defining any kind of crapppy material / alloy that is not up to the job it's supposed to do.
This includes also the material used plastic parts often used in automotive for knobs and handles that will snap or shatter during normal use.

The french translation is Merdanium
-"Crap, the block of the new engine prototype cracked"
-"What grade of shitanium is it made of?"
by MisterLebowski August 24, 2013