I play on a tablet in a popular toy "Words of the word".
Coincidentally I guessed the word KIP. Hm... what a word is that... I knock on it to find out the meaning. "A hole in the youth". To be clear, it became clearer.
Leah in search. Better I’t do that! and Wikipedia:
"Uphers ( Niderl. juffer - a virgin) - a round lens shape unshakable block
Three holes in the shape of the hole,
triangle, for the conducting of the thalreap loops. andquot;

How can I forget it now?!! to