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Discussion happened from a summer solstice posting where in Poland many people released lampoons into the sky (they looked like little parachutes with lights in them). Lampoon as is usually used is a satire, usually negative, as to lampoon someone. This made it look like for this instance lampoon was something derived from lamp.

drsved: Thanks for jumping in with such interesting contributions. I think deriving lampoon from lamp might make a fun folk etymology. But I can find no basis for it in fact. Etymonline admits the etymology is not certain but some French etymologists think it comes from lampoons "let us drink."

I'm inclined to believe that lampoon as used here is probably an incorrect translation from the Polish. Then again, it might be a made-up word combining lamp and harpoon.