First, these are all real words ... taken from a book called 'Totally Weird and Wonderful Words' - edited by Erin McKean, Oxford University Press, 2006.

Lara, you were onto something to start with ... (if you read to the end of this definition

titivil [tit-uh-vul] - a name for a devil said to collect words mumbled, dropped, or omitted in the recitation of divine service, and to carry them to hell where they would be held against the offender. By extension, a tattletale.

jollux [joll-uks] - an obsolete slang term meaning 'a fat person'.