plural of calcisponge

(electronics) Automatic interchanging of connections to a digital meter when polarity is wrong; a minus sign appears ahead of the value on the digital display if the reading is negative.

(Internet slang, nonstandard, eye dialect) What, both in its standard meaning as an interjection, but especially as a response to an outrageous or unexpected statement.

(historical) A member of the Scottish sect of Cameronians or Reformed Presbyterians.