Two blondes fly to a remote island to study the natives. They go to two adjacent islands and set to work.
A few months later, one takes a boat over to the other island to see how the other is doing. When she gets there, she finds her friend standing among a group of natives.
"Greetings! How is it going?" says Blonde Number One.
"Wonderful!" says the other, "I have discovered an important fact about the local language! Watch!"
She points at a palm tree and says, "What is that?"
The natives, in unison, say, "Zhimbalo-dong!"
She then points at a rock and says, "And that?"
The natives again intone, "Zhimbalo-dong!"
"You see!", says the beaming blonde, "They use the SAME word for 'rock' and for 'palm tree'!"
"That is truly amazing!" says the astonished gal, "On the other island, the same word means 'index finger'!"