adj. Covered in snags, or similar sharp projections.
the GNU version of the Collaborative International Dictionary of English
adj. Full of snags; full of short, rough branches or sharp points; abounding with knots.
adj. Snappish; cross; ill-tempered.
The Century Dictionary and Cyclopedia
Full of snags.
Abounding in fallen trees which send up strong stubby branches from the bottom of the water so as to make navigation unsafe.
Being or resembling a snag; snag-like.
Ill-tempered.
Word Usage
"My face had the hospital pallor, and, with my long hair and beard, I know I looked "snaggy" like a potato that has been forgotten in a dark corner of the cellar."