six o'clock

six o’clock

2. (In both the 12-hour clock and the 24-hour clock) The start of the seventh hour of the day; 6:00 a.m. (06:00).

   The breakfast buffet opens at six o'clock (= "The breakfast buffet opens at 6:00 a.m.").

4. (Only in the 12-hour clock) The start of the nineteenth hour of the day; 6:00 p.m. (18:00).

   The next train comes at six o'clock (= "The next train comes at 18:00").

6. (informal) A position behind (horizontal clock orientation) or below (vertical clock orientation) (from the location of the 6 mark on a clock face)

   We've got some bogeys at six o'clock.

   You've got a bogey on your six o'clock.

   I've got your six (= "I've got your back").

   Check your six (= "Watch your back").

six o'clock (not comparable)

1. (US, especially black slang, of a woman) Straight up and down, without curves, like the hands of a clock.
   • 1992, Edith Templeton, Murder in Estoril, Fourth Estate Classic House:

     She had the straight, flat figure which Bianca would have described as "a six-o'clock girl, straight up and straight down", and I thought how clever it was of Mascarenhas to have picked her to be in attendance, […]

   • 2004, Édith Templeton, Gordon: A Novel, Vintage, →ISBN, page 40:

     His shoulders were no wider than his hips; he had what is called a six o'clock figure, straight up and straight down, a skimped and scanty physique, as though the fairy of miserliness had presided over his conception.

   • 2011, Creasie M. Washington, The Crossing of Yamacraw, Lulu.com, →ISBN, page 141:

     Rena Mae was still an attractive woman, but now she was considered a six o'clock woman instead of a woman with big hips, […]

   • 2016, Donald L. Kaufmann, O Brave New Eve: Genetic Fantasy, →ISBN:

     Her body was void of pliable curves; instead, [she] was hard and angular, what dirty-minded high school boys once called “a six o'clock figure.” As for the rest of Tish, what should have been, just wasn't. Her hair (blonde? brown?) was frizzy, ...

• Clock position on Wikipedia.Wikipedia

• Major, Clarence (1994) “straight up six o'clock girl”, in Juba to Jive: A Dictionary of African-American Slang, Puffin Books, →ISBN, page 451
• 2005, Jonathon Green, Cassell's Dictionary of Slang, Sterling Publishing Company, Inc. (→ISBN), page 1377, "straight up six o'clock girl": [1940s] (US Black) a very thin woman