To physically harm as to impair use, notably by cutting off or otherwise disabling a vital part, such as a limb.
To destroy beyond recognition.
To render imperfect or defective.
Having fin-like appendages or flukes instead of legs, as a cetacean does.
Engage in rough-and-tumble activity
An environment of rough activity
Rough activity; fighting or brawling; a fight.
A person who characteristically engages in such activity
active, vigorous and rough, with the possibility of harm
highly competitive