Allat
allat definition by Slang.net
This page explains what the abbreviation "allat" means. The definition, example, and related terms listed above have been written and compiled by the Slang.net team.
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Allat is short for "all that." This slang term originated in Philadelphia, but is now commonly used on TikTok, Twitter, and other social media sites.
You may see allat used in several different contexts. For example, a Twitter user might say "whatever bro, ur not allat" to tell off someone who is acting pompous. Or, a TikTok user might comment "there's no reason to be doin' allat" on a video in which someone is acting extra.
However, allat is most commonly used as part of the phrase "I ain't reading allat." This phrase means roughly the same thing as TLDR, but connotes additional attitude.