Slimeball

wiktionary

ref

From slime +‎ ball; sense 1 (“a round lump made up of or coated with slime or a slime-like substance”) is a calque of German Schleimkugel, from Schleim(“mucus; slime”) + Kugel(“ball”), while sense 1.1 (“a mucus-coated lump containing the cercariae of a liver fluke”) may be a calque of German Schleimball (from Schleim + Ball(“ball”)). [1]