And you could kinda say the same about "inflate".Gonfler.
It can be heard in France as well, and not only in the north (although it certainly is rare elsewhere), but I had no idea it was originally a Belgicism and it came from Flamish!رش - Wiktionary
It reminds me of Belgian French "drache" (noun) and "dracher" (verb), which belong on this thread too.
I didn't know that either.it came from Fl[e]mish!
And to "squirm", which is quite fitting.It's close in sound to earthy words like 'wort', 'womb', 'warm', 'urn'.
I think it qualifies, although knowing what the word means can sometimes introduce a bias. "Schmutzig" could also sound kinda cute.German "schmutzig", "dirty".