Definitions by Shackstraw

lallacaust 

When something so unbelievably funny makes a large number of people LAL at one individuals misfortune.

*Tony walks to the stage to obtain his diploma*
*Tony shits himself*
Billy - "HEY LOOK, TONY SHAT HIMSELF"
Dean - "What a lallacaust!"
*Audience howls with laughter*

lallacaust by Shackstraw June 15, 2011