Edit
Revealing clothes designed to be the opposite of the bunnysuit: rather than the limbs being exposed while the torso is covered in a leotard, both arms and legs are covered with a two-piece costume, with the resulting negative space resembling where the leotard would go.
Like the bunnysuit, bunny girl elements such as fake animal ears and fake tails can be added in. Usually features a shrug or cropped jacket as the top half, with pasties occasionally covering the chest.
Originally first found in 2014 (post #1766182), but went viral in 2020.
It's not exactly known what's the picture that began the meme, but it can be safely assumed that post #3701575 is the one that put most of the spark, given it's popularity on both Twitter and Pixiv.
A sub-meme was created by Touhou fanartists, featuring Usami Renko and Maribel Hearn; usually the artwork features Renko wearing a reverse bunnysuit with bunny pasties, while Maribel is in the background, accompanied with the description "Renko working at a shady part-time job recommended by a friend" (友人に勧められた怪しいバイトに勤しむ蓮子ちゃん).
See also
This tag implicates meme_attire and reverse_outfit (learn more).