So it wasn't just a Singaporean thing.
From subtle asian traits:
"Hi everyone gather round,
I have another story to tell.
OKAY so when I was 14, I went on a summer exchange program where I would go to GuangZhou/ZhongShan and live with the high school students there. I'd been to China many times before, but I didn't actually hang with locals much or anything, mostly just family trips.
So, my parents thought that it would be a good idea for me to go on this summer exchange program to learn more about Chinese life and culture. I got to live in the same dorms as the high school students there, eat in the cafeteria with them, make friends, etc etc etc.
Anyways, one day as we're on a field trip to some park (I forget where we were tbh), they tell me, "hey hey William, let's play Aruba!"
Me: "wtf is Aruba"
My Chinese Friends: "It's a fun game where we all lift you up like a king!"
Me: "o shit okay yeah that sounds fun let's do it"
What they ended up doing was ramming my crotch into a tree several times.
Apparently it's a common playground game/prank they do in China.
And so, I returned to the U.S. with a newfound respect and appreciation for Chinese culture."