Homemade buzzer
From Battlestar Wiki, the free, open content Battlestar Galactica encyclopedia and episode guide
Bootes and Martin drank this alcoholic beverage the night before Martin and Vella's wedding.
Judging from the connotations, the name (and the Western-type setting), we can assume that "Homemade Buzzer" is akin to "moonshine" (The Lost Warrior).