Your lack of a strong vocabulary is the only reason you seem to see a typo there.
Main Entry: chink
Pronunciation: 'chi[ng]k
Function: noun
Etymology: probably alteration of Middle English chine crack, fissure
1 : a small cleft, slit, or fissure
2 : a weak spot that may leave one vulnerable
3 : a narrow beam of light shining through a chink
aka... a weak spot
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American beer is like making love in a canoe. It's f*cking close to water. - Monty Python
If God had intended us to drink beer, He would have given us stomachs. - David Daye