local words = {
	"fuck", "faggot", "asshole", "arsehole", "dick", "cunt", "wtf",
	"retard", "bitch", "shit", "bastard", "nigger", "nigga",
	"raping", "penis", "vagina", "nipple", "titties", "penis", "boobs", "cock"
}

minetest.register_on_chat_message(function(name, message)

	if not message then
		return
	end

	local msg = message:lower()

	for n = 1, #words do

		if msg:find( words[n] ) then

			minetest.kick_player(name, "( ** WATCH YOUR LANGUAGE ** )")
			message = "-- kicked for swearing."
			minetest.chat_send_all("** " .. name .. " kicked for  swearing.")
			return message

		end
	end
end)