(A). A mess, a muddle; as, “a pretty hash he made of it.” A
hash is a mess, and a mess is a muddle.
I'll soon settle his hash for him.
I will soon smash him up; ruin his schemes; “give him his gruel”;
`“cook his goose”; “put my finger in his pie”; “make mince-meat of
him.” (See Cooking.)
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894