(This list is irregularly yet irrepressibly updated. All the new words go on the top.)
(suggested by Mer Almagro)
proposed pronunciation: /ˈɑrsgəˌwaɪ/, rhymes with arse & why
closest meaning: ‘tramp stamp’
Tramp stamp is a bit sexist, isn’t it? A shame about the rhyme, but it’s gotta go. Never fear, though, as Dutch has got your back with aarsgewei. It’s gender neutral, and it literally means arse antlers, which you’re also free to substitute if aarsgewei is too difficult to spell or pronounce.
proposed pronunciation: /ˈbɒrəl/, rhymes with coral
closest meaning: ‘drinks’
After a presentation, after a meeting, after a long week of work, you can go for drinks. What a horribly unfanciful word, drinks. Instead, substitute the Dutch word borrel. Originally and primarily it means a glass of strong liquor, but it’s been metonymically extended to the practice of imbiding drinks (alcoholic or non-) in a social, often professional, setting. Next time you organise a conference or a meeting, make sure there’s a borrel afterwards.
proposed pronunciation: /ˈkeɪtər/, rhymes with later
OK, tomcat is a nice word. It doesn’t have to be replaced. But consider adding kater. It sounds fun. While you’re at it, re-introduce puss as the word for a female cat. Consider combining them into katerpuss or something similar for extra credit. Added bonus: kater also means ‘hangover’ for some reason. Two words for the price of one.