If you look at that "lmL", notice that using your right hand, have your middle and ring fingers down and you see the symbol for love.
girl: alright =)
girl: aww, I love you too!
Lol lmao rotfl mad
Response: LML! Wow I wish I would've seen it
-When A person, most likely mexican replaces letters in words for no apprent reason to sound and/or look cool.
Pedro: Iight my niqqa
Eric: Seriously its spelled with a g. Dont be lmls'in on me.