This is a look you give somebody or something as you consider whether to kill or
end it's existence.
It is an outward sign of malicious intent which the victim can perceive.
It's origins are from The 1989 film "Goodfellas" where the gang boss
Jimmy Conway (played by
Robert DeNiro) is depicted in a bar staring at his 'crew' and trying to decide whether he should 'whack' them all and keep the stolen money.
CEO: "To be honest, I'm giving the whole sales team
the Jimmy Conway stare..."
Ricky: "I'm not sure if it's working out with Julie, I'm giving the relationship the Jimmy Conway stare"
Laura: "this laptop is old and rubbish, i'm starting to give it the Jimmy Conway stare"