cog 관용구

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slip a cog|cog|gear|slip|slip a gear

v. phr., slang To make a mistake. I must have been slipping a cog when I said that I would run for mayor. Jim hates to sleep outdoors. He's slipping his gears if he's promised to take the boys camping.
Compare: SLIP UP.

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cog

cog
In addition to the idiom beginning with cog, also see slip a cog.

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cog in the wheel

cog in the wheel
Also, cog in the machine. One who holds a minor but necessary post in a large organization, as in Frank knew he was just a cog in the wheel of this giant corporation. This term alludes to the role of the mechanical cog, one of the teeth on a wheel or gear that, by engaging other teeth, transmits or receives motion. Used figuratively since about 1930, it sometimes is put as small cog in a large wheel, emphasizing a person's lack of importance.

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cognizance

cognizance
take cognizance of
to notice or recognize

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slip a cog

slip a cog
Also, slip a gear or one's gears. Lose one's ability to reason soundly or make correct judgments, as in She must have slipped a cog or she would never have gone out barefoot in December, or What's the matter with him? Has he slipped his gears? These slangy usages allude to a mechanical failure owing to the cog of a gear or a gear failing to mesh. The first dates from about 1930, the variant from the 1960s.

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small cog in a large wheel

small cog in a large wheel
see cog in the wheel.