Young kids these days can’t get enough of goo and are taking their enthusiasm in new and increasingly innovative directions. Now, slime is back ten-fold, with famous slime-makers populating must-follow Instagram feeds and slime recipes wallpapering the squishier parts of the internet. The stuff they dumped on celebrities was notoriously viscous and gross, but kids love it so celebrities relented to publicists’ demands and ruined their outfits. Nickelodeon made slime the closest thing America had to a celebrity fluid in the nineties.