Collocations for slime - noun

thick
primeval, primordial
the primeval slime from which all life developed

pond
black, green, etc.

be covered in, be covered with
produce
Frogs produce slime to keep their skin moist.

ooze

mould/mold
The organisms are a slime mould/mold.

a trail of slime
The snail left a trail of slime along the floor.