A special day that a man gives to his significant other (girlfriend, fiance, wife) in which he does whatever she wants, whenever she wants. Most of the time, this is done to fix a screw-up, or obtain good graces in preparation for a future screw-up. As seen on the FX series "The League"
My wife is still mad at me for going to Vegas with the boys. Looks like I'm gonna have to give her a terrific lady day tomorrow to make things right.
The kind of girl every guy has encountered. Classy, sweet, prim and proper girl. Attractive, but never sexy in her choice of make-up or clothing. Usually church going, friendly but naïve. Thus, her flirtations which can lead to cock-teasing, go unrealized by her. To the guy though, they are very overt. A Lady J can be easily seduced but will never go all the way. "I think we should stop now" is a common plea by her, as the guy is rounding third base. An encounter with a Lady J always results in a painful case of blue balls.
Bill: "Hey, how did your date go with that sweet looking co-ed in our philosophy class?" Jerry: "Waste of time and money. She turned out to be a Lady J, so I had to go home and jack off to relieve the pain."