(sports) A goal that results from a player putting the ball or puck into the goal of their own team; the resulting goal being scored for the opposition.

plural of a life of its own

(advertising, euphemistic) secondhand

To own jointly with another person or organization.

(idiomatic, derogatory) In a self-important and domineering manner; self-importantly, arrogantly.

(informal) With a sense of arrogant superiority.

As a consequence of one's own skill, qualification or status, rather than that of another.

(idiomatic) To be independent of others

(idiomatic) Far excelling even the closest contender; not having any worthy competition.

Taking as much time as one requires; when one is ready.