Aqila wrote this for me to recite out loud.
I failed miserably, without a doubt.
I managed to understand the meaning, though!
Shi si bu shi si shi,
shi si shi shi si,
si shi bu shi shi si.
Very simple meaning:
fourteen is not forty,
fourteen is fourteen,
forty is forty,
There is the continuation or a variation to that...
shi shi shi
si shi si
shi si shi shi si
si shi shi si shi
si shi si zhi shi shi zi shi si de
Guess what the meaning is! :)
More tongue twisters can be found here.