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I've often read books where English men made statements about others "topping it the knob" or "topping it the gentleman," which I took to mean over playing a role or attitude.

Is this a legitimately used idiom, or is it archaic, or even possibly fabricated?

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Thanks for one I've never run across before! – StoneyB Aug 23 '12 at 19:02
up vote 5 down vote accepted

I don't recognise this idiomatic usage, but there are a dozen or so instances of top/topping it the knob/nob in Google Books - so in a limited sense, the expression does exist. But that link is typical for all verb forms and spellings - they're mostly novelist Patrick O’Brian, from 15 years ago or less.

I suspect this use of to top [it the something] relates to OED's sense 15:

Theatr. to top one's part, to play one's part to its utmost possibilities or to perfection; to transcend the character assigned to one; transf. to sustain (a character) with success. to top the officer (Naut.)

Thus, "to top [it] the xxx" can be seen as being related to:

"Don't come the high and mighty"

"He's always playing the fool"

"I'll just act the innocent"

I also suspect "knob" is always incorrect here, since I'm pretty sure the nob being referenced is noun - Chiefly British Slang. a person of wealth or social importance. Since I find no evidence of "top it the [noun]" being used earlier than a couple of decades ago, I doubt it's "archaic". It's either a (deliberately or accidentally) garbled version of "top the [noun]", or an obscure dialectal usage.

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I think you're spot on about nob. But I note that most of the references at Google Books are from several Patrick O'Brien novels in the Jack Aubrey series, using both spellings; two others are from works on nautical subjects; and your OED citation ends with a nautical reference. Another GB reference is to a work about the early history of New Zealand. Is it perhaps a seaman's phrase O'Brien ran across in his studies of the Napoleonic era? – StoneyB Aug 23 '12 at 19:02
@StoneyB: I noticed that O'Brien accounted for a lot of the (tiny) total, but didn't dig too deep. I found top the officer back in 1847, but O'Brien 1998 seems to be first with his nob/knob - I now think he bungled his pseudo-archaism, frankly. – FumbleFingers Aug 23 '12 at 19:31
Perhaps he just made it up to see how far it would go. – StoneyB Aug 23 '12 at 20:17

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