of one's life
Being the greatest, worst, or best occasion of a lifetime, as in She was having the time of her life at the party, or The threatened takeover of the company put the president in the fight of his life.
Words nearby of one's life
of late,
of mice and men,
of necessity,
of note,
of old,
of one's life,
of one's own accord,
of service to someone, be,
of sorts,
of the devil,
of the essence