jiggers, the, n. — Green’s Dictionary of Slang

jiggers, the n.

[SE jig, to move up and down + ? ref. to jigger n.³]

1. (US) delirium tremens.

1897

S.F. Call 24 Jan. 17/1: Private Smith has been ‘boozy’ for a week. A night in the guard house has left him with the jiggers.

2. a state of nervousness.

1916

Day Book (Chicago) 21 Jan. 19/1: Don’t get the jiggers, people. It’s a plain practical proposition.