oodles

Etymology 1

Uncertain; perhaps from scadoodles (“unspecified large amount, number, or quantity”) (US, slang) (although the Oxford English Dictionary notes this is attested slightly later), or from boodle (“whole collection or lot”) (US, dialectal), caboodle (“large collection of people or things”) (US, slang) + -s (suffix forming pluralia tantum).

noun

1. (originally US, informal) Chiefly followed by of: an unspecified large amount, number, or quantity; lots, tons.
   "Along the lake where I went camping once there were oodles of a bright purple thing." / "I don't know what that was," my mother said. "I've never lived near the water. The purplest thing around here is joe-pye weed. We can look him up and see if he has any relatives. Come to think of it, the book had a color index." 1965, John Updike, Of the Farm, Ipswitch edition, London: André Deutsch, published April 1973, page 121
   Minimalist yet soothing décor, private pools and steam rooms […] and simply oodles of class make this one of the island's top choices. Honeymoon, anyone? 2008, Andrew Burke et al., Thailand’s Islands & Beaches, 6th edition, Footscray, Vic.: Lonely Planet, page 323

Etymology 2

noun

1. plural of oodle