Slops
From Chrono Wiki, a database for the Chrono series that anyone can edit
Slops appear in Chrono Trigger (DS) as an consumable item in the Arena of the Ages. If given to your monster, the monster will use it and regain some HP. Like all the other Arena Items, it cannot be used in the main storyline, and is lost if you give your monster another item. They can only be acquired from the Nu's shop in the Arena, and it costs 100 G each.