(automotive) A type of engine sump where oil that flows down from the crankshaft etc is sucked up into an external reservoir (as opposed to a wet sump where it simply pools in a pan at the bottom of the engine).

Misspelling of sum up.

Lubricating oil contained in the sump of an engine; the waste oil drained from the sump at the time of an oil change.

plural of dry sump

plural of sumph

(Scotland, Northern England) A dunce; a blockhead.

Obsolete form of sump (“lowest part of a mineshaft, into which water drains”).

Pronunciation spelling of something.

(Scotland, Northern England) stupid; blockheaded

The quality of being sumphish.