The act of taking a goose and inserting it into an orifice on your body while at the same time lubing another person with 10w-30 motor oil preferably Castrol.
a lifestyle involving sending all nighters and pulling benders. popular on hats. if one reps the dirty goose then they will out party anyone present at said party.
yo did you that guy wearing the dirty goose
hat.
yeah he slammed the whole half gallon of black out water like it was nothing.