Screwtape

Origin

See the C. S. Lewis book, The Screwtape Letters, from the compound of screw + tape. The internet sense is thought to have originated on the internet Flintstones forum, Pebblescrap.

Full definition of screwtape

Verb

1. To mess things up, to corrupt, to be devilish.
2. (slang, Internet) To bump a particularly old topic thread on the internet or in an electronic forum, by posting an ironic or humorous reply to a previous message.