>>11307549
What? No, I heard of docking over twenty years ago and it had nothing to do with urethral penetration. Even on Danbooru there's the distinction between the two. Then there's sounding, which is the term used for inserting something into the urethra.
You can use whatever term you want, I'm just saying anon's use of cockfucking is a bit more to the point and specifically descriptive of what they want to see.