The Collaborative International Dictionary of English v.0.48:
bagful \bag"ful\ (b[a^]g"f[.u]l), n. The quantity that a bag will hold; as, he ate a bagful of popcorn. Syn: bag. [WordNet 1.5]WordNet (r) 3.0 (2006):
bagful n 1: the quantity that a bag will hold; "he ate a large bag of popcorn" [syn: bag, bagful]