when a friend or family member constantly fucks things up for you no matter what they do.

Used to describe someone who ruins the natural patterns that happen in life. (a marriage, relationships)
Guido, if i allow you to marry my daughter, you better not become the chink in my chain.

That damn guy that married my daughter is a chink in my chain.
by KJHSRAEFGXBH SDXXFZDTBN November 14, 2007
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