To party. to "live it"
Bob: What's up man? Mac: Oh you know man, just livin' it. Bob: Where at? Mac: At Fat Tony's, you should cruise over.
Someone who is or is describing another who is looking and feels relaxed and out of it from the use of Marijuana.
" yo wit dem niggas come out that lincoln?"... ""Bruh they Straight up Livin' it my nigga"