Eustace Bagge Share definition Flag A grumpy old man who always wants his wife to cook for him, bullies a poor dog named courage, and always says "Yayuwaaaank". "Stupid dog. You made me look bad"Said by Eustace Bagge Eustace Bagge by Joeyqueen sartorius July 11, 2017 Get the Eustace Bagge mug.