3 blondes walked into a bar. The bartender asked the first what she wanted.

She replied "I'll have a bl." He thought a moment and then asked her

"What's a bl?" She replied, "Well, duh, a bl is a Bud Lite."

He turned to the second one and asked what she wanted. She replied "Make mine

a ml." He thought ok, if a bl is Bud Lite, then ml could be Michelob or

something, and said, "OK, what's a ml?" She replied, "Well, duh, it's a

Miller Lite."

He then turned to the 3rd one and asked what she wanted. She replied "I'll

have a 15." He said, "Ok, bl is Bud Lite, and ml is Miller Lite, but I have

never heard of a 15. What is it ?" She said, "Well, duh, it's a 7-7."