Source : Webster's Revised Unabridged Dictionary (1913)

Sackful \Sack"ful\, n.; pl. {Sackfuls}.
   As much as a sack will hold.

Sackful \Sack"ful\, a.
   Bent on plunder. [Obs.] --Chapman.

Source : WordNet®

sackful
     n : the quantity contained in a sack [syn: {sack}]