Stands for "Not Long, Please Read". Often as reply to the comments of TL;DR, urging the commenter the length of the read isnt long or even too long.
synomums: IS;PR (It's Short, Please Read, it has only 8 words)
MUCKYMUCKY: I LOVE YOU
MARTINEZ: TL;DR, AND IM A DICK.
*SILENCE FROM READING
MARTINEZ: THAT WAS FUNNY. TOTALLY WORTH IT. THANKS FOR THE NL;PR. I WAS A TOTAL DICK.