L.U.P.O.S.
A human who has no willpower and is basically a couch with legs. And even that couch would be better.
You're L. U. P. O. S. You didn’t even try to do your homework.
That kid is L. U. P. O. S. He didn’t show up to the final.
You're L. U. P. O. S. You're the reason the team lost.