Same thing with Poland. Under soviet influence we had a currency with code PLZ (PoLish Zloty), but due to hyperinflation we needed a denomination so 10 000 PLZ became 1 PLN (PoLish New Zloty, it annoys me, I didn’t know what ‘N’ stands for for a long time). There is a lot of common names for 1 000 000 PLZ/N (like “bańka”) which now are used also for 100 PLN – depends how old you are.
Apart from this there are many different names for 1 000 PLN like “patyk” (stick), “klocek” (brick), “kafel” (tile), “koło” (circle), but some people sometimes use these names for 100s, you just need to blend in the context.