
...and Dr. Winkle just ripped
the sign-up sheet off the wall.
The Big Bang Theory Season 2, Episode 3

No, it's Leslie Winkle. It's a long story.
The Big Bang Theory Season 2, Episode 16

...why does it have to be Leslie Winkle?
The Big Bang Theory Season 2, Episode 2

Yeah, Leslie Winkle.
The answer to the question:
The Big Bang Theory Season 1, Episode 13

Dr. Winkle, what colorful name
did you call Dr. Cooper this time?
The Big Bang Theory Season 2, Episode 3