(adv) in an arrogant manner, Example:in the old days she had been harsh and stiff ; afraid of her husband and yet arrogantly proud that she had a husband strong and fierce enough to make her afraid
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
[とらのいをかるきつね, toranoiwokarukitsune] (exp) (id) person who swaggers about under borrowed authority; small man acting arrogantly through borrowed authority; a fox that borrows the authority of a tiger