Why is it called motorboating?

https://lemmy.fmhy.ml/post/1178835

Why is it called motorboating? - FMHY

I’m not a native English speaker, but I do get most of the slangs. Still, this one got me puzzled 🤔… I really can’t see any relation to motors or boats in this.

Because it sounds like a motor boat.

Really? I’ve never been on a motor boat, I wouldn’t know.

At least that explains why I couldn’t find logic behind the slang.

Not really, it’s just a fun expression. Kinda sounds like a propeller in the water.