A brunette, a redhead and a blonde walk into a bar. For the sake of
brevity, each one orders her drink with an abbreviated code word. The
brunette walks up to the bartender and says, "Hey give me an ML." The
bartender nods his head and hands her a Miller Lite.
Following her, the redhead walks up to the bartender and says, "I'd like
a BL." Giving her a nod, the bartender pulls up a Bud Lite.

Last, the blonde walks up to the bartender and says, "Give me a
Fifteen."

"A Fifteen?" the bartender replies, "What the hell is that?"

"Oh, you know," the blonde says, "A Seven and Seven."