[Mister Micawber]

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1-- Just make a quick/wild/uninformed guess at the answer
2-- You psychologically withdrew from the current situation; you became introspective (maybe)
3-- give permission to do something
4-- trivial/unconsidered/silly talk
5-- saved just in time (the reference is to a boxer who is knocked down but does not lose to a 10-count because the bell sounds for the end of the timed round)
6-- (pretend to) ignore; intentionally ignore
7-- it will be (minimally) sufficient for the purpose
8-- it will be (minimally) sufficient for the purpose

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