thumb|Names and contents of beer and ale vessels in James Lightbody's Every Man His Own Gauger, 1695
The butt is an obsolete English measure of liquid volume equalling two hogsheads, being between by various definitions.
The word "buttload" originated from a load of liquid one butt in size, later becoming a more generic slang term meaning "a lot."
The butt is one in a series of English wine cask units, being half of a tun.
See also
- English wine cask units#Pipe or butt