blackmouth

Etymology
For the origin of the pejorative "Presbyterian", several theories exist:
 * A specialisation of a dialect sense "liar, slanderer, foul-mouthed person" applied to political radicals.
 * Ulster Scots refusing to take the "Black Oath" imposed in 1639;
 * Covenanters eating blackberries or blaeberries while hiding in the wilds during the The Killing Time.

Noun

 * 1) A chinook salmon, especially a juvenile.
 * 2)  a Presbyterian