live one

/L AY1 V W AH0 N/
noun
  1. 1

    (informal, idiomatic) A person, thing, or situation which is particularly interesting, noteworthy, or urgent.

  2. 2

    (informal, idiomatic) Someone who is easily fooled, victimized, or ridiculed.

  3. 3

    (informal, idiomatic) Someone who is eccentric, nonconformist, or otherwise peculiar.