What does the word LUL mean?

Usage examples for LUL

  1. Kent, you're good for twenty years, at the very lul- least! – The Grafters by Francis Lynde
  2. The words, which fit in too neatly for it to be an adaptation, are the familiar " You spotted snakes"; but, though he is bitter with Mendelssohn for repeating " so good night" so often, he cheerfully cuts out one " lul- la," surely a grievous thing to do for one so correct! – Shakespeare and Music by Christopher Wilson