An evening slack is a term derived from the eponymous label of the creature commonly known as the evening slacker.
Originally, in the early 19th century, primarily in London, there were men of reduced means who would attach themselves to elegant women entering fancy restaurants. Their motives can only be imagined.
In defense, the women began sporting man-like clothing, but looser, more feminine versions, in order to deflect the attention of these less-than-desirable clingers on.
Over time, that particular dress became known as the slacker, or for brevity's sake, the slack.
The tradition has really died off, except in pockets of conservative Protestant culture. Rumor has it that the term is still used in a few resorts in the northeastern United States.
Originally, in the early 19th century, primarily in London, there were men of reduced means who would attach themselves to elegant women entering fancy restaurants. Their motives can only be imagined.
In defense, the women began sporting man-like clothing, but looser, more feminine versions, in order to deflect the attention of these less-than-desirable clingers on.
Over time, that particular dress became known as the slacker, or for brevity's sake, the slack.
The tradition has really died off, except in pockets of conservative Protestant culture. Rumor has it that the term is still used in a few resorts in the northeastern United States.
Please note that during dinner, jackets are required for gentlemen age twelve and over, and for ladies, dresses, skirts or evening slacks.
by pdX-tal September 20, 2006
Get the evening slacksmug. 
“Even the worm will turn" is an English language expression used to convey the message that even the meek, the most docile and submissive, will retaliate when pushed too far.
by Shae.s February 1, 2025
Get the Even the worm will turnmug. by Tingle Likes Rupees March 13, 2020
Get the don't even crackmug. by Hym Iam July 7, 2025
Get the And even if God can't...mug. by jostytosty August 23, 2022
Get the not even lyingmug. by :ge: October 4, 2017
Get the leik i even caremug.