To sit, stand, or walk with your shoulders and head bent forward in a lazy or drooping way.
Slouched can make people think of being lazy, tired, or not caring.
Examples:
He slouched in his chair.
She slouched down the street.
The boy slouched because he was tired.
The cat slouched around the house all day.
The tree slouched in the wind.
She slouched so much, she almost fell over.