What's a "Cloverleaf" Maneuver?

In a description of an alledged fight between American
pilot named Lawrence in a P-38 versus Adolf Galland in
a Ta-152 (or was that an FW 190D??), Lawrence mentions
a "cloverleaf" maneuver that apparently positioned him
well against Galland.

From the context of the story, I gather it was something
a P-38 was especially good at because of it's twin engine
control. Galland was apparently surprised by the maneuver.

Anyone know what this maneuver actually was, and if a P-38
was especially good at it?

CC, I think the story came from you! Care to comment?

Don't know why it's taken me so long to ask, but I just
gotta know now!


SMH