I was working in the kitchens at Burger King today and used the line to full effect...
"Can I have a whopper please?"
"Thats what she said!"
"I need a double whopper!"
"Thats what she said!"
"Put it in the chute!"
"Thats what she said!"
Then came the gem when my boss threatened to fire me for using it....
"Mike.. How long have you worked here?"
"Since October.."
"Good that means I can finish you off..."
"must...not...tthhh.... Thats what she said!!!!"
I told everyone at school. In AP Biology we said it about a hundred times, as we were studying macroevolution and the teacher talked for the entire class about "mating".