What is Sic 'em?
1.
Attack that; an order you might give a dog so that they will growl, snarl and perhaps bite at the target.
(doorbell rings. you find door-to-door soliciter asking you for money. you thank them kindly and say 'no thanks'. they insist and persist). Turn around and say to Fido "SIC 'EM!"
See
Random Words:
1.
(British slang, 90s) An instigator, someone who likes to get people wound up.
From Strawberry Tattoo, a Britishism: "Key merchant..