There were four Buddhist monks who played instruments and chanted everyday.
One fine morning, a lady in a mini skirt went into the temple to pray. When
the lady knelt down to pray, one of the chanting monks saw the lady tsao k'ng
(i.e. exposing herself accidentally).
The monk was shocked to see that the woman was not wearing any panties! He
felt he had to share this valuable insight with his fellow monks, but also did
not wish to alert the lady.
So he began chanting the message: "Wu lang bo chin nai ko....(Someone's
not wearing panties...)" 
The monk beside him was playing a tambourine, and he thumped this response:
"Ti-to-lok, ti-to-lok (Where? Where?)"
The third monk, playing a horn, replied: "Duuu... Duuu........(There!
There!)"
Finally, the last and the most  righteous monk, sounded his cymbals in
disgust: "Ti ti kua... ti ti kua! (Still peeping! Still peeping!)"