leal
Korean slang for really, for real, agreed.
Meaning
Leal means real or truly and signals agreement. It is casual, youthful chat language used in Korean texts and comments.
Origin
Korean Wikipedia dates leal and ㄹㅇ to late 2009. No first post, account or show is given in the supplied material. The exact coinage is unknown. Shortening to initials is common in Korean chat.
How it's used
People use it to reply yes, true or I agree. It works as an adverb for really and as a standalone interjection. It does not inflect, and ㄹㅇ dominates in fast chat.
Example
That movie was leal funny, I watched it twice.
Variants & related
Spellings are 레알 and ㄹㅇ, with 리얼 as a phonetic variant. Related slang includes ㅇㅈ and 진짜. It overlaps with the loanword real from English.
Common misunderstandings
Some link it to Spanish real as in Real Madrid, but it comes from English real. It is informal and fits chat, not work mail. It is not offensive, but overuse can sound dismissive.