"Tequila Tuesday” is a drinking slang name for a day of the week. Tequila drinks are served on this day, often at a reduced price. “Tequila Tuesday” has been cited in print since at least 1976.

Other slang names for days of the week include Shunday, Sober Sunday, Margarita Monday, Messed-up Monday, Mojito Monday, Moonshine Monday, Boozeday Tuesday, Tanked Tuesday, Tasty Tuesday, Tipsy Tuesday, Trashed Tuesday, Twisted Tuesday, Wasted Wednesday, Whiskey Wednesday, Wine Wednesday, Winesday Wednesday, Thirsday, Thirstday, Thirsty Thursday, Fucked-up Friday, Shit-faced Saturday, Sloppy Saturday, Sloshed Saturday and Smashed Saturday.


16 July 1976, Seattle (WA) Times, Tempo, pg. 9, col. 3 ad:
Every Tuesday is Tequila Tuesday at the --
GOLDEN TIDES
TEQUILA BAR DRINKS
. SUNRISE
. TONIC
. COLLINS
. DRIVERS
. MARGARITA
$1

4 May 1977, Seattle (WA) Times, pg. H8, col. 3 ad:
TEQUILA TUESDAYS
Special Prices on Tequila
(The Cutlery East—ed.)

Google News Archive
26 February 1979, Spokane (WA) Daily Chronicle, pg. 30, col. 2 ad:
THE CREPERIE
TEQUILA TUESDAY 75c

18 September 1981, Seattle (WA) Times, Tempo, pg. 12, col. 1 ad:
QUINN’S FISHMARKET & BAR
Presents
TEQUILA TUESDAYS
ALL TEQUILA BAR DRINKS INCLUDING MARGARITAS, DRIVERS AND SUNRISES
$1

Google News Archive
16 October 1981, The Bulletin (Bend, OR), “Night Life,” Entertainment Section, pg. 25, col. 1:
China Ranch still features Tequila Tuesday, Wednesday La dies’ night, and tee-shirt night every Thursday.

Google Books
Frommer’s San Antonio & Austin
By Edie Jarolim
Hoboken, NJ: John Wiley & Sons
2005
Pg. 181 (Ranch 616 in Austin):
Try to make it to Tequila Tuesday, where the fixed-price menu includes a drink of Sauza Hornitos, and everything is sided by live music. 616 Nueces St. & 512/479-7616.

someecards
Weekend Ecards
02.21.2012
Margarita Monday. Boozeday Tuesday. Wine Wednesday. Tequila Thursday. And then the weekend begins!