replace "==" by "iswm"
but u can't kick from $chan bcz ON NICK event isnt a channel event but a server event
so this can be something like this
Code:
on *:nick:if (M3GA* iswm $newnick) && ($v2 ison #chan) { kick $v2 $v1 Message }

replace #chan by your channel name

P.S: this code isnt tested