essentially you say this when you relate to/agree with someone or something. its similar to for real (fr) in the way that people would say “i *insert action here* fr” on tiktok and twitter. it is said in the comment sections of tiktoks or in the repost messages of reposts you find on your for you page (fyp) on tiktok.
TL;DR when someone says something you agree with you would respond with “real”.
guy 1: i like watching little kids at the parktrip and fall on their ugly faces
I've kept it real when everyone around me is fake.
The most important people are the one's who tell the truth and keep it real, rather than someone who thinks they have to put on a front and be fake when they around.
Often used by someone to describe themselves as "genuine" or "authentic". It is perhaps the most overused and generic word in current use, rendering it almost meaningless. Browse any personals advertisements and every other person who lacks a sufficiently descriptive vocabulary will describe themselves as "real".