Rampant

Webster's Dictionary of the English Language

·v Ascending; climbing; rank in growth; exuberant.

II. Rampant ·v Ramping; leaping; springing; rearing upon the hind legs; hence, raging; furious.

III. Rampant ·v Rising with fore paws in the air as if attacking;

— said of a beast of prey, especially a lion. The right fore leg and right hind leg should be raised higher than the left.