Slice?

Whats a good name for slimy mud over ice? Slice or mice? First lap around Geode yesterday 10:00am Frozen solid and perfect, second lap 1 hour later, about 1/4 inch of really slick goo on top of the frozen ground. Fun but dangerous, had to bug out after that because I didn't want to ride on the trails as they thawed, I'm comin up short on actual miles for this month but the effort has been up, think I'll put some serious roller miles on tonight...