出典:Wiktionary
Uncertain; perhaps from scadoodles (“unspecified large amount, number, または quantity”) (米国用法, スラング) (although the Oxford English Dictionary notes this is attested slightly later), or from boodle (“whole collection または lot”) (米国用法, dialectal), caboodle (“large collection of people または things”) (米国用法, スラング)[1] + -s (suffix forming pluralia tantum).
oodles pl (normally 複数形, 単数形 oodle)