buttful noun2 •Enough to fill a butt (cask).While a buttful of water was thought enough for those who were rich enough to pay for it, waterworks were small undertakings; […] — 1849 •(US, slang) Enough to fill a person's buttocks.If the bugger tries to get back into the Corners he may end up with a buttful of Durfee birdshot. — 2010 formsbuttfuls
