Someone, usually a male, who is enthralled by hyper-masculine strength through bigoted intolerance and ruthless leadership through deception and disregard for most people. They will do anything, including self sacrifice to gain the interest of a fascist tyrant. Sift could also be an anagram for Seeking Interest in Fascist Tyrants.
That crowd attacking the capitol building is full of sifts.
To be a proud boy, one must first be a sift.
Don't be a sift.
Mr. Jones, you are a sift.