Sag

(N) A person who constantly fails at things, and usually their names are Carlos, Andrew, Ben, or Gabbi.
(Vb) when you fail at something
(Adj) not done right

(N) You're such a sag.
(Vb) Stop sagging on us, jeez.
(Adj) Ben, you did such a saggly job mowing the lawn.

by Dr. Giraffey April 06, 2013