Green’s Dictionary of Slang

1. (US Und.) a banker.

1916		‘Thieves’ Sl.’ Toronto Star 19 Jan. 2/5: BANKER Jugger.
1933		Ersine Und. and Prison Sl. 48: jugger, n. Bankers who buy stolen bonds.
1935		A.J. Pollock Und. Speaks.

2. (US Und.) a bank robber, a safe-breaker.

1925		H. Leverage ‘Dict. Und.’ in Flynn’s mag. cited in Partridge DU (1949).
1949		Monteleone Criminal Sl. (rev. edn).
2013		T. Piccirilli Last Whisper in the Dark 147: [I] saw the faceplate to a forty-year-old safe. I wasn’t the world’s best jugger. It would take time to crack it.

3. (US) a drunk.

1971		Quarterly Journal of Studies on Alcohol XXXII 733: Jugger An alcoholic [HDAS].
1985		E.L. Abel Dict. Alcohol Use and Abuse 99: Jugger. An alcoholic.
2004		T. Henderson In Control 122: Believe it or not, me, alcoholic, dope fiend, whatever you want to call it, [...] Thomas helped guys like me and Lee Arthur and Jugger Red [etc.].