Adj: Generic term for cheap wine. This is derived from the huge bottles (generally gallon sized) that K-Mart used to sell for $2-3 USD. These bottles had simulated grapes blown into the glass, after consuming this poison the person would have a huge hangover hence the term "Knotty head"
by Scott Free June 01, 2006
Knottie head is also derived from Seagrams Gin. The bottle is textured and bumpy resembling knots of wood.
by Geek Boys June 26, 2010