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general::
Phrase(s): slouch down
to slump or droop down. • Don’t always slouch down, Timmy! Stand up straight. • I slouch down because I am tired., Phrase(s): slouch down (in something)
to sink or snuggle down into something, trying to become less visible or more comfortable. • Please don’t slouch down in your chair, Tim. • He can’t sit in anything without slouching down.
McGrawhill's American Idioms And Phrasal Verbs