slouch 
(slouch)
(slouch)v. slouched, slouch·ing, slouch·es
v.intr.
1. To sit, stand, or walk with an awkward, drooping posture.
2. To droop or hang carelessly, as a hat.
v.tr.
To cause to droop; stoop.
n.
1. An awkward, drooping posture or gait.
2. Slang An awkward, lazy, or inept person: good at chess and no slouch at bridge, either.
[Origin unknown.]
sloucher n.
slouchi·ly adv.
slouchi·ness n.
slouchy adj.