What is high protein milk?

I was just reading a recipe that called for high protein milk. I've never heard of it. Is this something found at the supermarket?

Thanks.

 

:google:

Has nothing interesting! Just high protein Meal Replacement Shakes.....

 

Maybe its this stuff:

http://myspacetv.com/index.cfm?fuseaction=vids.individual&videoid=8185756

 

narcsarge, I'm glad it wasn't just me who couldn't find anything!

inthespirit, that was awesome, load me up with some of that badger milk!

I asked my nutritionist, and she said its just concentrated milk. She told me to use 1% instead.