The act of generously making a homemade alcoholic beverage made of obscure fruits and vegetables. After that, one takes his/her concoction freezes it for several days, then stuffs it up the unsuspecting anus of his/her partner, jamming it in vigorously over and over until the soft pink area of the anus bleeds.
John: How was your weekend, Bill?
Bill: Oh, it was great, John. I performed the Scottish Mulberry on Gweneth.
John: Sounds like quite the adventure!
Bill: Oh you betcha, John! *smiles*