An an alcoholic drink made up of a can of beer and a shot of whiskey. Like a Boilermaker, but the drink is made by taking a swig from the can of beer, and filling the resulting space in the can with whiskey (Bourbon is prefered). Named as a tribute to Walter Matthau's character Morris Buttermaker in the Bad New Bears, who can be seen making them throughout the movie. A great tailgating drink.
by Jerome6 September 13, 2011
When a man proceeds to squat the scrotal region over his partner's forehead, begin to masturbate so that the scrotum proceeds to bounce on her forehead. This creates nut butter, thus the buttermaker. For best results, run for 5 miles to create a sweaty scrotal region. The additional salt in the butter is for her pleasure.
by Brando in Canada November 7, 2008
by YuppyGup August 16, 2020