The Collaborative International Dictionary
Wineglassfuls
Wineglassful \Wine"glass`ful\;, n. pl. Wineglassfuls. As much as a wineglass will hold; enough to fill a wineglass. It is usually reckoned at two fluid ounces, or four tablespoonfuls.
Wiktionary
wineglassfuls
n. (plural of wineglassful English)