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!"
by b2 March 01, 2005
Order for a dog. Usually to attack at something, or just to growl at it. Commonly used by demons in Supernatural to give orders to Hell hounds.
Lilith: "Sic'em, boy." -- Supernatural, No rest for the wicked.
by Hunterus Villainus July 03, 2014