Aliasing partial_erection → half-erect
Link to alias

Reason:

2/2 - 1/2 = 1/2 + 0

I say it should be the other way around, because half is... well half, 50%. And partial covers anything from 1% to 99%.

Also, most show a penis that is not just "halfway". For me, they look like after sex rather than partially erect.

But what can I say about them, I don't have any no, wait, I do! :P