Those of you who have heard "Aunty Kathy" or "Aunt Cathie," is it more-or-less the same song as the "Old Tante Koba" lyrics that I posted? It certainly sounds like that's true for some of you. I'm also wondering if Marais and Miranda recorded this song as "Aunt Cathie," and what the lyrics were.
Is the tune the save as the one in Q's post?

I'm guessing the lyrics Q posted are Afrikaans rather than Dutch (Neederlandisch?? - what do the people of the Netherlands call their language and country?). Here's how Google translator translates it:

Koba old aunt, she was so stupid,
His stirring her coffee with her toes to.
Tie-rie-rie-ra, de-rie-ram-pam-pa!
Tie-rie-rie-ra, de-rie-ram-pam-pa!
Old Auntie Koba, open the door;
your husband's pants stuck in the crack.
Tie-rie-rie-ra, the rie-ram-pam-pa!
Tie-rie-rie-ra, de-rie-ram-pam-pa!
-----
Baboon climbs the mountain so quickly and so hard;
baboon climbs the mountain so quickly and so hard;
baboon climbs the mountain farmers to contend.
Hooray for the baboon!
Oh do not cry, do not mourn O, the Stellenbosch boys come again.
Oh do not cry, do not mourn O, the Stellenbosch boys come again.