Meaning

3 senses
  1. (New England, Southern US, UK, dated)A large amount carried in a butt.

    We spent all day Sunday and picked up a buttload of pecans.

  2. (broadly, mildly, slang, vulgar)Any large but unspecific amount.

  3. (UK, West Country, obsolete)A regional English measure of capacity of a heavy cart (a butt), containing 6 seams, or 48 bushels, equivalent to 384 gallons.

Origin

From butt + load. Butt in this context may be possibly one or both of:

From butt + load. Butt in this context may be possibly one or both of:

Wiktionary, CC BY-SA 4.0 · source

buttload — meaning, examples, forms, synonyms | Krumeto