One Bourbon, one scotch, and one beer.

George Bush Jr., Bill Clinton and Jimmy Carter went out to the bar for a drink
Clinton shouts out to the bartender, "give me a G and T." "What's that?" says the bartender. "A Gin and Tonic" says Bill. Then Jimmy says, "I'll take an R and C." Bartender says, "and what is an R and C?" "Thats a rum and coke", says Jimmy with a big smile. Bush puts his order in, and says, "give me the ole 15" "what the hell is the ole 15?" asks the bartender.
Bush responds, "daahh, thats a seven and seven."