“Get stoned. Drink wet cement”

“Get (really) stoned. Drink wet cement” is a jocular saying that has been printed on many images. “Get Really Stoned, Drink Wet Cement” (a saying printed on a button) was printed in the Press Democrat (Santa Rosa, CA) on March 26, 1970.
 
       
26 March 1970, Press Democrat (Santa Rosa, CA), Gayle Le Baron column, pg. 8, col. 1:
... Get Really Stoned, Drink Wet Cement ...
(A saying on buttons.—ed.)
 
15 August 1971, Marietta (GA) Daily Journal, “Suggestions Offering On Detecting Drugs” by Rev. Nelson Price, by pg. 4A, col. 4:
“Get really stoned—drink wet cement.”
     
Google Books
Life Science
By Harry K. Wong, Leonard Bernstein and Edward Shevick
Englewood Cliffs, NJ: Prentice-Hall
1973
Pg. 226:
GET REALLY STONED; DRINK WET CEMENT
 
February 1975, Redbook (New York, NY), “Paul Newman: A Day at the Races!” by Charlotte W. Gomolak, pg. 112, col. 1:
They’re all wearing gifts from Newman—specially designed red, white and blue T shirts blazoned with his racing number “33” and “Get really stoned. Drink wet cement.”
     
Google Books
I Love Me:
Who Do You Love?
By Gordon Legge
Edinburgh, Scotland: Polygon
1999
Pg. 13:
Graeme settled instead for reading the graffiti on the DSS sign on the outside wall: ‘(...) ‘Get Really Stoned - Drink Wet Cement’; ...
   
Twitter
TWiG’s ADV - KOTP
@TWiG
Get realy stoned… drink wet cement!!
3:55 PM - 3 Sep 2007
   
Twitter
Julie Clarke
@jueannmary
drink wet cement and get totally stoned
2:05 PM - 11 Apr 2009
   
Twitter
greg mcconnell
@bennythemanhill
get stoned
drink wet cement
12:20 PM - 9 Jul 2009
 
Reddit—Advice Animals
Drink Wet Cement (qkme.me)
submitted August 17, 2012 by Chris207
(“Drink wet cement, and get completely stoned.”—ed.)
   
Reddit—Taglines
Get really stoned. Drink wet cement. (self.taglines)
submitted March 7, 2017 by tagline_bot
Random auto tagline generated at Tue Mar 7 12:30:01 2017
   
Twitter
HumorBaas
@HumorBaas
Get stoned, drink wet cement!
2:04 PM - 16 Aug 2018
 
Twitter
lorraine Jo King
@LahLahBean
#tuesdaytitters
How does one become stoned drunk?     
Drink wet cement.
6:22 AM - 25 Sep 2018