Get the FREE one-click dictionary software for Windows
or the iPhone/iPad and Android apps
Noun: guck  gúk
Usage: N. Amer, informal
  1. Any thick, viscous matter
    "The mechanic's hands were covered in engine guck";
    - sludge, slime, goo [informal], goop [N. Amer, informal], gook [informal], gunk [informal], muck, ooze, gloop [Brit, Cdn, informal]

Derived forms: gucks

Type of: matter