'Knee-deep' definitions:

Definition of 'knee-deep'

(from WordNet)
adverb
Up to the knees; "we were standing knee-deep in the water" [syn: knee-deep, knee-high]
adjective
Coming only to the ankle or knee [syn: ankle-deep, knee-deep]

Definition of 'Knee-deep'

From: GCIDE
  • Knee-deep \Knee"-deep`\, a.
  • 1. Rising to the knees; knee-high; as, water or snow knee-deep. [1913 Webster]
  • Grass knee-deep within a month. --Milton. [1913 Webster]
  • 2. Sunk to the knees; as, men knee-deep in water. [1913 Webster]
  • Where knee-deep the trees were standing. --Longfellow. [1913 Webster]