The external urethral orifice?

It is usually a vertical slit. As the pee comes out as a vertical oriented stream it fluctuates between vertical and horizontal several times until reaching its target. However as you get older the per-hole shape changes shape and enlarges. Plus if you still have your glans it stretches due to daily use and abuse and such, so it interferes with the outgoing stream unless you pull it out of the way. Everyone learns to pull it out of the way. But if you're also "soft" pulling it out of the way is much harder than one could imagine. I'm not a doctor, I just got one of these things.