Batter up?

We’ve just witnessed (if you’re a baseball fan of any kind) a recent smattering of this particular type of batter; the one that keeps backing in and out of the box, adjusting his batting glove (for the 28th time), checking his grip, bla, bla, bla. So what do we call this kind of baseball player?

1st place: Maybe Ruth (Brad G., Minneapolis, MN)
2nd place: A Lumbercheck (Margaret K., Salina, KS)
3rd place: The ump’s ire (Todd T., Seattle, WA)
Honorable mention: Pro Crastinator (Eva M., Santa Fe, NM)
word-play