The Sentence "Clear Tepi"

Everyone has their own chores to do right?
I have lots because I am a girl.


My brothers and I have 1 same chores we got to do.
Which is "washing the dishes".
We divide the time and day when we wash it.
We don't do it together of course.
But there is one sentence..
no one but us know the answer.


Not even our mum though she ask sometimes.
The sentence is "clear tepi".
My brother is the one to use it.
I am the one to follow.


It's funny when no one knows what we're talking about.
It's like that sentence is our Morse code.


You notice I use "brothers" right?
because I have two of 'em.
One currently away studying.
The other one is the one that always use that sentence.
I'm not sure whether the first one knows what I'm talking 'bout.


This is a fun thing to tell.
Can ya guess what it mean?