I know, I am a loyal think-ite. I just don’t think the argument I referred to helps our cause.
Are you kidding? “Think coming” has a necessary glotal stop. You can practically hear the needle scratching across the record in the space between those words.
Now I think that it is ‘think.’ Literally I had another think coming.
Well, that is the nub of the problem. That is why people get confused. “Thing” sounds better, so people think it must be right, but in fact it makes no sense, whereas “think”, which sounds awkward (because of the two adjacent k sounds), makes good sense.
People think it “sounds better” because they’ve always heard it that way. And it makes more sense.
This should have been a poll. I’m too lazy to count. I have other thinks to do.
Oh, you thing so, huh?
I am another vote for “think”.
But for all intensive purposes, I could care less.
Here’s a lengthy thread on another forum, which further illustrates that people will fight passionately to defend whichever version they grew up hearing (or thinking they were hearing). It is summarised nicely in this post (six and a half years after the thread started!)
Yep, that pretty much says it all.
It makes no sense, and if people have “always” heard “thing” they have not been listening, because it is quite certain that many people think it is “think”, and say “think”. It sounds better because it does not have the repeated k sound.
From the summary post I linked to above:
If I heard someone who says “another thing coming”, I would just understand it as “another think coming” because that’s the phrase I know and they sound nearly identical. Likewise, if I used “another think coming” then someone who grew up knowing the “thing” version would hear it as that one. (At least, we would before this debate!)
It’s only when you see it written down that the “wrong” version looks jarring. (I must admit I was unaware of the Judas Priest song before the first of these discussions, but I’m quite surprised that a British band used the “thing” variant in the 1980s, as it seems to me that it is more of an American phenomenon, with “think” holding on in Britain.)
Agreed.
Previous SDMB threads on this thorny issue:
September 2000
June 2004
It’s think. The first time I heard someone use “thing” I snickered at their ignorance. A while ago (when we did this thread before) I was shocked that so many people thought it was ‘thing’ and I’ll grudgingly admit that it’s apparently entered into acceptable usage. But ‘think’ is the original idiom and more correct.
By a few years. Very few.
It’s thing. The first time I heard someone use “think” was in this very thread, and I snickered at their ignorance. 
Did you even read Colophon’s link in post 109; It’s both really.
This thread reminds me of those who snicker at the ignorance of those who say duck tape.
The link is a good summary. I think the “duality” argument strongly supports think as a more clever bit of wordplay (you think this, but you’re about to think something else…) as well as the usual lack of a ‘thing’ that precedes the ‘another thing.’
But go ahead and use ‘thing’ and I’ll go on hearing you say ‘think’ instead. 
I never, ever considered the duality or wordplay. I mean, I can see it now, and it makes some sense, but I’ve never interpreted the saying in that manner. Sometimes the initial “think” is implied but not specifically used.
“You were expecting warm temperatures today? Well, you’ve got another thing coming.”
“You want pizza tonight? You’ve got another thing coming.”
In these cases it’s not a question of having another “think” it’s a question of receiving a different result than expected.
See?