About the dimensions of an average human female, I suppose. But yeah, most pokemon do make the "crash" sound when sent out. I'd guess anything above 50 lbs, maybe even less.
Yes, master.CRASHAh! Wild Pansage Appears!...."CRASH"?Weaken that Pansage for capturing!!I came from VIP!!Go, Gardevoir!!It's not like I am fat or...It's not what you think, master!! This game always makes a sound like "CRASH" when you send out a Pokemon!!I know, I know!! Calm down!!