flatful

Enough to fill a flat (apartment).

[S]he pointedly remarked that they had just moved to the city a month previous, that they were dissatisfied, and would return to Hoosierdom in June. I was completely taken in, and departed without making the assessment. However, when whole flatsful began to make similar explanations under similar circumstances, I awoke to the fact that I had been bluffed.

Enough to fill a flat (container).

When the first lot of cuttings has been taken from the flat clean out the flat, using new sand for the next lot; never use sand twice. It must not be supposed that all will go as swimmingly as it reads, as there is a disease that young cuttings, known as “cutting-bench fungus,” which sweeps whole flatfuls away in a single day.

[P]lant the tubers in flatfuls of one of the above mixtures right after the pink sprouts have appeared.