meaning:
1. "made with poor craftsmanship or with low quality materials"
2. "rundown and shabby"
3. "poorly or dishonestly executed (badly done)"
The term comes from way back in the day to describe making yarn out of scraps of clothing or low-grade wool, but is now used to refer to any number of things that are low quality, dishonest, or cheaply made.
Words use arises from an oddly named and still standing 18th century mill in the Town of Dewsbury in West Yorkshire, UK. Shoddy & Mungo Ltd. This mill used to be involved with 'Worsted' this is the cheapest and worst to deal with hence its name form of woollen product. The name shoddy was forever more connected with the worst of the industries business.
Locally and Nationally people also use it as a way of describing ones state when one is high from smoking biftas
Word used in order to claim ownership between disputed, desired item. Works similar to the phrase, "I call ____." Depending on what rules are being used, a standard shoddy can be trumped with a, "blitz," or preemptively countered with a, "no blitz."
Principle of shoddy is much like the concept behind shotgun
==1==
A: Who wants my last cookie?
B: OOh, me!
C: Shoddy cookie!
B: Shoddy cookie blitz!
<person B gets the cookie>
==2==
A: One of us has to go shovel the driveway.
B: Yea.
A: Shoddy no shovel, no blitz.
B: ... shit.
<person B must shovel>