slump

to slump, to slip, or fall plum down in any wet or dirty place. N. In the South the word FLUMP is used in the same sense.

Slump
·noun A boggy place. II. Slump ·noun The gross amount; the mass; the lump. III. Slump ·vt To <<Lum...

Webster's Dictionary of the English Language
slump
1) A favorite dish in New England, called an apple slump, is made by placing raised bread or dough a...

Dictionary of American Words And Phrases by John Russell Bartlett.