Short for John Wayne Pain - The vague feeling a girl gets the day after having sex that is an all day reminder of yesterdays events.
Can be used by girls as code for telling friends what they did with their evening
Oh man, Steve and I had sex last night and today I have the JWP
The ability girls and women have developed to hold several items at once in one hand. The skill has been developed due to the lack of pockets in women's clothing.
I thought she'd need multiple trips to carry her phone, keys, wallet, and Starbucks to her car since she needed the other hand to open the door, but she used her impressive girl grip to carry everything in one hand.