Green’s Dictionary of Slang

1. (US Und.) of money, marked.

1901

N.Y. Times 6 Aug. 2: A strong piece of evidence against him is a marked bill, which in police parlance is called ‘greased money.’.

2. (US) drunk.

1928		Randolph & Pingry ‘Kansas University Sl.’ in AS III:3 219: Greased, adj. — Somewhat intoxicated.
1931		A. Hardin ‘Volstead English’ in AS VII:2 88: Terms referring to the state of intoxication: [...] Verbs: Greased.
1941		M. Prenner ‘Drunk in Sl.’ in AS XVI:1 Jan. 70/1: greased.
1958		(con. 1950) E. Frankel Band of Brothers 282: I am not tight or plastered, polluted, greased, blind, sozzled, ossified or atomized.

3. killed [grease v.⁵ ].

1976		(con. 1969) C.R. Anderson Grunts xiv: The grunts’ greatest fear [...] was of being killed, the most common terms for which were dinged, zapped, greased, blown away, caught his lunch, and bought the ranch.
1988		D. Woodrell Muscle for the Wing 74: I’m going to tell you how Bell got his dumb-ass self greased.
1993		T. Jones Pugilist at Rest 17: When other Marines saw a short-timer get greased, it devastated their morale.
1994		(ref. to c.1967) L. Cleveland Dark Laughter 116: Metaphors for killed in common use in Vietnam were [...] greased.