I think you talking about geocaching ;)
I think it has something to do with the gravity of the two objects.
Something called echo-location
Slave catchers
Cootie Catchers
There is something called "air resistance" or "friction".
Chasing zoey
They are called dog catchers, dog hunters, or dog nappers. =)
The simple answer for this question would be Slave hunters or Slave catchers..
Some catchers are allowed more leeway to call pitches by their managers than others. But usually pitches are called by the manager or pitching coach and relayed to the pitcher by the catcher.
It is a metaphor because Amy was a girl Silent Bob had a relationship with previously. He lost the girl and claims every day since then he spent chasing Amy.
I've heard we are called kittens :)
Objects inside a tornado are called debris.