If I said something was bunk, you would probably think it was foolish or insincere, and rightly so. However, what does that say about bunk beds? Are they foolish? I consider them to be a rather ingenious use of space, quite the opposite of foolish.
The word bunk in the sense of beds probably comes from a bunker, but the nonsense version of bunk has a more interesting etymology.
In Buncombe County, North Carolina a remark was made by its congressman, who defended an irrelevant speech by claiming that he was speaking to Buncombe. Quite the legacy to leave, don’t you think?