Some investors believe that 'the worm has turned', and that the economy is getting better.
She finally 'wormed' the truth 'out of' him. [=she finally got him to tell her the truth]
I didn't think that she would go on a date with that 'worm'. [='wretch']
(..) ARIADNE: This is your house? Mine and Mal's, yes. Where is she? She's already gone. That's my son, James. He's digging for something, maybe a worm. That's Phillipa. I thought about calling out to them... ...so they would turn and smile and I could see... ...those beautiful faces of theirs, MAN: (..)2010 Inception
(..) in a half-remembered dream. A man possessed of some radical notions. COBB: What is the most resilient parasite? A bacteria? A virus? An intestinal worm? ARTHUR: Uh... What Mr. Cobb is trying to say... An idea. Resilient. Highly contagious. Once an idea has taken hold of the brain, (..)2010 Inception