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1.
Used to describe the overall poor quality of an item from design straight through to manufacturing and use.

Thanks to planned obsolescence and general crapmanship I have burned through two paper shredders in two years. That's bunk!
by strayduck February 18, 2008
 
2.
Mediocre skill in an occupation or trade. Expertise in mediocrity. Poor outcome in a trade or business despite years of experience.
I always notice the crapmanship in the NYC subway repairs.
by Magister Ludi August 22, 2011
 
3.
v. A nincompoop's ability to brain fuck a person possessing more intelligence.
The neophyte senator displayed crapmanship during yesterday's deliberation.
by beintetoma December 13, 2010