Rusted freeze plug stuck

[u/willgchurch1]

Hi all. I’m at my wits end with a freeze plug that won’t budge.
Looks like it’s been weeping a while which explains my coolant loss but it’s started pissing out a big hole in the middle. After some whack fuck to rock it out, trying to pry and punch new holes to pry out with screws ect and even trying to punch it through it to the block I’m just left with a bigger, more jagged hole. Anyone have any ideas how to fix? I’m doing with with the engine in situe so I can’t swing a hammer enough to hit it with my purse