Some people find nice to invent mocking lies in order to laugh at others.
Imam as-Sadiq (a) said: “For Any one who forges lies against a believer for the purpose of disgracing him, demeaning his personality, and sticking ill reputation to him, Allah will move him from His guardianship to the Shaitan’s. The Shaitan , however, w ill not welcome him."
source : http://www.maaref-foundation.com