Did I witness the (in)famous fist pump?

[Stat-Man]

Last night's Co-Ed Softball Game:

We had a fairly decent umpire (if one ignores the usual "deep" and "hit the plate" stuff anyways. )

A few times, though, I noticed him signalling where he put his fists together as if he was holding an imaginary bat and banging them together twice. All I could think of was "Is this the first-pumping I read about on the officiating forum?"

I'm not quite sure what it means, but my top two choices would be:

(1) Pitch is a ball because it jammed the player, or
(2) Ok guys, I'd like to get a chance to bat, too.