What is Cock In Hand?
1.
To go into something 'cock in hand' means to enter it with confidence, not confident that you will succeed but simply confident that you are in fact entering into that endevour.
Robbie walked into math class only to find there was a homework quiz that day. Robbie never did any of his homework and had no idea what they had been studying. But, Robbie wouldn't let it get him down. He went into that quiz cock in hand and failed it with dignity.
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2.
having ones cock in hand
Here I come, cock in hand.
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