a hundred/thousand/million and one things/things to do, etc.

a hundred and one (something)

A huge or burdensome amount of something. Often followed by "to (do something)." I can't drive you to the mall, I already have a hundred and one things to get done today. I've got about a hundred and one clients to meet with today, so if you need anything from me, you'd better make it snappy! The boss never seems to be satisfied until she's given us about a hundred and one reports to run at once.
See also: and, hundred, one

a million and one (something)

A huge or burdensome amount of something. Often followed by "to (do something)." I can't drive you to the mall, I already have a million and one things to get done today. I've got about a million and one clients to meet with today, so if you need anything from me, you'd better make it snappy! The boss never seems to be satisfied until she's given us about a million and one reports to run at once.
See also: and, million, one

a thousand and one (something)

A huge or burdensome amount of something. Often followed by "to (do something)." I can't drive you to the mall, I already have a thousand and one things to get done today. I've got about a thousand and one clients to meet with today, so if you need anything from me, you'd better make it snappy! The boss never seems to be satisfied until she's given us a thousand and one reports to run at once.
See also: and, one, thousand
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

a hundred/thousand/million and one things/things to do, etc.

(informal) very many or too many (things to do, people to see, etc.): I’m so busy — I’ve got lectures to prepare and a hundred and one letters to write — I just don’t know where to start.She’s always got a thousand and one excuses for everything.
Farlex Partner Idioms Dictionary © Farlex 2017
See also: