A plum bed (Devonshire). A soft bed, in which the down lies light.
The dough plums well (Devonshire). Rises well, and will not be heavy.
The cake is nice and plum (Devonshire). Light. (
Plump, swelled out.)
He is worth a plum. The Spanish
pluma means both plumage and wealth. Hence
tiene pluma (he has feathered his nest). We arbitrarily place this desideratum at 50,000 has got only half a plum. “Either a plum or a plumstone”- i.e.
“Aut Casar aut nullus.” Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894