Is it possible to lost a dilator insight my urethra? (pls read)

Is it anatomically possible for a man to lose a dilator in his urethra?

I recently ordered a dilator that’s a bit on the short side (8 cm long and 0.4 cm in diameter)—small and thin, in other words...

I started stimulating my penis with it. My goal was to insert it all the way... At some point, I worked up the courage. (BTW, the dilator has that standard beaded texture and then a flat end piece for gripping.) I inserted it slowly and used my finger to help get it all the way into my penis. Immediately, I noticed that the dilator was sliding deeper. I tried blocking the urethra with a finger at the bottom. It didn’t work. With gentle massage and patience, it came out the top... It drove me crazy. I panicked, but I also found it damn hot and sexy. I inserted it again shortly after... I felt it sliding deeper. But since I was already so horny and my penis was hard as a rock, I noticed that the dilator wouldn’t come back up. The massaging made me so horny that I started jerking off hard until I came. I was hoping my cum would push it out. But no... I felt a new sensation... I could feel the dilator from the outside. It was behind my testicle in a position I couldn’t identify. My guess is that when I ejaculated, a vacuum formed, causing the dilator to penetrate even deeper. With slow, prolonged massage and deliberate tightening of my pelvic floor, it suddenly shot out of my penis like a rocket....

I don’t know why... Even though I was panicking like crazy and thought I had to go to the doctor and confess, it made me so incredibly turned on and horny to have something inside me that was truly completely inside me.

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So what do you guys think? Was it a totally stupid move and something I should never do again, because it really could happen that the dilator gets stuck inside? Or should I keep trying, maybe with slightly thicker dilators?