the one motherly girl amongst the group who can still take care of friends (hold hair while friend throws up, walk friend to the restroom to piss, make drinks, carry/walk friend, etc.) while being drunk herself and not being bothered by it at all.
Girl: I really hope I don't get drunk and stupid at that party tonight.
Boy: Don't worry Diana is gonna be there. She usually enjoys playing the role of Mother Grey Goose when we're out at parties.
Boy: Don't worry Diana is gonna be there. She usually enjoys playing the role of Mother Grey Goose when we're out at parties.
by the original MGG July 19, 2009
The shape of a hand made with all fingers coming to a cone position with the intention of fisting something.
by greygoose69 February 26, 2015