I no longer play WoW so I’m not really in the loop with recent changes, but if Blizzard did indeed remove macro targeting, there is no way this macro could work. Sorry!

Sure, I can give it a try. Let’s break it up and use less shorthand for easier reading:

/target Wild Turkey
/run
    if not GetRaidTargetIndex("target") and not UnitIsDead("target") and UnitName("target") == "Wild Turkey" then
        if turkey = nil or turkey == 0 then
            turkey = 8
        end
        SetRaidTarget("target", turkey);
        turkey = turkey -1
    end

And now in bite-sized chunks.

/target Wild Turkey

This will target the nearest Wild Turkey

/run

This starts a Lua interpretor, allowing everything that follows to be written in pure Lua as opposed to WoW commands. It would be impossible to write this macro without the assistance of Lua.

if not GetRaidTargetIndex("target") and not UnitIsDead("target") and UnitName("target") == "Wild Turkey" then

This evaluates a condition:

If the current target is not already marked, and the current target is not dead, and the current target is indeed a Wild Turkey, do the following…

if turkey = nil or turkey == 0 then
    turkey = 8
end

This introduces a variable, “turkey”. It is not initialised to any value, but the first line will check if the variable doesn’t exist, so that’s no problem. So basically, if the variable turkey either does not exist or is equal to 0, set turkey to 8. end breaks us out of the if conditional. Why do this? The variable turkey is used to keep track of the raid icons (numbered from 1 to 8, see) in use. For now, just keep that in mind.

SetRaidTarget("target", turkey);

Add an icon to the current target. Which icon? That’s defined by the current number of turkey. A list is available of what number is equivalent to what icon at WoWWiki.

turkey = turkey -1

Decrement turkey by 1. Every time the button is pressed, you will effectively be decrementing your turkey variable by 1 in order to cycle through available raid icons. The above conditional ensures that if turkey ever gets to 0, it’s set back to 8 (a valid icon number).

end

And this breaks us out of the outer conditional.

Given the explanation, you should be able to modify it to your liking. It should work with any target whatsoever, but I’m not sure exactly what you’re after.