So I'm a complete noob. Picked up this used git-fiddle a few weeks ago. Never touched one before in my life. I've spent the last few weeks fiddling with it, and learn a chord here and there.
Somewhere (probably the internet), I read about "slash" chords. This sounds like one of those. D/F#. If so, then I just altered my fingering. Used my middle finger for the 2nd fret of the G, ring finger for the 2nd fret of the high E, and my pinky for the 3rd fret of the B. Then I used my index finger to mash on the F# (which I think is the 2nd fret of the low E), and used the pad of my index finger to mute the A.
Sounded like a decent chord...
Again, I may be waaaay off base here, but if not, then I thought this might help. :)