Wiktionary
n. (context idiomatic sarcastic English) A hypothetical time set aside for performing time-consuming tasks, however insinuating that the speaker really has no free time.
Usage examples of "copious free time".
They were, I sensed, discussing my case, but also other matters having to do with their copious free time: hobbies, and so on.
I'm supposed to pull together other aspects of the story, too, in my copious free time - but that's what producers are for.
If she could figure out, in her copious free time, how to rebuild the Navy's morale, offset the technological inferiority of its weapon systems, magically replace the dozens of battle squadrons it had lost since the war began, and find a way to divert Manty attention from taking the rest of the Republic away from the Committee of Public Safety, that was simply an added benefit.
In our copious free time we'll go down and kill off the last half dozen and reclaim our territory.
I'm going to be swamped grading papers in my copious free time at least through the weekend.
If she could figure out, in her copious free time, how to rebuild the Navy’.
Maybe something I could do with my copious free time at the moment is make a list.
He didn't doubt Green Stone and Lilac would collect more in their copious free time.
In my copious free time, with ten minutes to go before a dinner session with Charles Ward and Hildegarde Quifting, I tried to call Laura Drury.
And what they did in their copious free time hadn't affected their work at all.