[kabes]

There are certain Dutch dialects (e.g. west flemish) that would say gametje instead of gamepje. So you were not entirely wrong.

[j4coh]

Apart from that it could be taken to mean "little sperm or egg cell".

[rapnie]

The Dutch naming immediately struck my eye. I wonder.. it is not an easy name to pronounce for, say, English-speaking people, is it? Even in Dutch it does roll from the tongue a bit awkwardly imho.

[snthpy]

Afrikaans also users the -tje ending for diminutives.