Here is the States the same joke is told
A Young white man gets lost in the western plains, and is nearly starved to death.
An Indian squaw finds him and nurses him back to health.
During his time with her, they would get naked and during intercourse the Squaw would war hoop Whahoo Wahoo!
So he was thinking he must be one hell of a love maker!
After several months, he decided to leave the Squaw and head back to civilization, His first stop was a Wattering hole Saloon.
While sititng there quenching his thirst, he watches some Young Braves around the pool table, every now and again one of them would yell Wahoo Wahoo!
After several rounds of this, it got the best of his curiosity, and he went up to them and asked why they keep yelling Wahoo?
One of the Braves looks him in the eye, and says "Wrong Hole"