1. Any thick, viscous matter
   - sludge, slime, goo, goop [N. Amer], gook, gunk, muck, ooze, thick, gloop [Brit, Cdn]

Derived forms: gucks

Type of: matter

• Gracula
• Gracula religiosa
• grad
• grad school
• grad student
• gradable
• cow cockle
• cow dung
• cow lily
• cow manure
• cow oak
• cow parsley
• cow parsnip
• cow pasture
• cow pen
• cow pony
• cow shark
• cow's head
• cow-nosed ray
• cow-tongue fern
• cowage
• coward
• cowardice
• cowardliness
• cowardly