He's an EXPERIMENTAL physicist.
The Big Bang Theory Season 6, Episode 5
...or as I call it, the Leslie Winkle
Experimental Methodology.
The Big Bang Theory Season 2, Episode 2
Uh, I am an EXPERIMENTAL
physicist at Cal-Tech,
The Big Bang Theory Season 5, Episode 13
And they're all hopped up
on EXPERIMENTAL steroids.
The Big Bang Theory Season 2, Episode 16
what to do with a washed-up
EXPERIMENTAL physicist...
The Big Bang Theory Season 5, Episode 10