"slouch" in the noun sense
1. slouch
an incompetent person usually used in negative constructions
"he's no slouch when it comes to baseball"
2. slouch
a stooping carriage in standing and walking
"slouch" in the verb sense
1. slump, slouch
assume a drooping posture or carriage
2. slouch
walk slovenly
Source: WordNet® (An amazing lexical database of English)
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