What does “Not to be a dick, but—” mean? Is “Dickishness” an accepted, stand-alone English word?

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Track title: A Thousand Exotic Places Looping v001

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Chapters
00:00 What Does “Not To Be A Dick, But—” Mean? Is “Dickishness” An Accepted, Stand-Alone English Word?
01:31 Accepted Answer Score 14
02:10 Answer 2 Score 2
02:47 Thank you

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Full question
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Tags
#meaning #wordusage

#avk47