L.D.B.L.
A lazy way to say you're leaving and hope they never remember you.
L. D. B. L. I'm gone. Don't remember me. I didn't remember you.
L. D. B. L. I'm leaving. I'm not coming back. I don't even like you.
L. D. B. L. I'm out of here. Don't miss me. I won't miss you.