- The definition of a kleptomaniac is someone with an abnormal urge to steal.
An example of a kleptomaniac is someone who goes from store to store stealing items they don't need or want.
A kleptomaniac stealing from a store.
Variant of kleptomania
an abnormal, persistent impulse or tendency to steal, not prompted by need
Origin of kleptomaniaModern Latin ; from Classical Greek kleptēs, thief (; from Indo-European base an unverified form klep-, to hide, steal from source Classical Latin clepere, Gothic hlifan, to steal) + -mania