An acronym that stands for, "...as long as this Atari.", indicating a bowel movement of such significant size, that it is as least equal in length to that of the Atari 2600 gaming console.
"I just took a huge shit. I swear it was as long as this Atari!"

ALATA: "...as long as this Atari."
by A Topazz April 10, 2008
Get the ALATA mug.