Aliasing pch → prehensile_clitoral_hood
Link to alias

Reason:

It's a really long tag with a nice short acronym that even google recognizes.

https://google.com/search?q=sergal+pch

EDIT: The tag alias pch -> prehensile_clitoral_hood (forum #244238) has been rejected by @bitWolfy.

probably but i wouldn't be surprised if most people at the very least in north America think you are talking about lottery when using "pch" and use it as such rather then a acronym for a fictional species female genitalia parts...

https://www.google.com/search?source=hp&q=pch&oq=pch&gs_l=psy-ab.3..0i131k1l2j0j0i131k1j0l3j0i131k1j0l2.1530.2122.0.2888.4.3.0.0.0.0.120.307.2j1.3.0....0...1.1.64.psy-ab..1.3.306.0..46j35i39k1j0i46k1j0i20i264k1.0.sZ0BK-zfb2Q

If some lottery website is the next-closest thing, I'd say it's a perfect tag alias, since nobody here is looking for that :)