A brunette walks into a bar and says, "Gimme an M L."
The bartender says, "What’s an M L?"
The brunette says, "A Miller Light."
Another brunette walks in and says, "Gimme a B L"
The bartender says, "What’s a B L?"
She says, "Bud Light."
A dumb blonde walks in and says, "Gimme a 15."
The bartender says, "What’s a fifteen?"
The blonde says, "7&7, duh!"