"Kalko" is lime, the mineral; not "a lime"
"Peklo" means a pickle - maybe because it's always in saltwater?
"Praheliko"; "heliko" is a snail, so "pra-heliko" would be a primitive or prehistoric snail, or the ancestor of snails.
"Ĝemus rompiĝontoj"; "ĝemus" means would groan, "romp-iĝ-ont-oj" means those who are going to be broken.
* Hell in Czech.
** I have no idea what that is.
This most likely isn't terribly accurate, open for proof-reading! Helpu min!