Reply to Feezing/extending a vocal - ableton

Using ableton

Im trying to create the effect of freezing a vocal that sounds almost like a loop but without the repeat sound

@ 2:48

'why dont you kill meeeeeeeeeemeeeeeeeemeeeee" doesnt sound like a loop but more of a freeze effect
http://www.youtube.com/watch?v=qDW1PWEaGbg

I couldnt find any tutorials or info in community s. maybe im using the wrong terminology

Any Ideas?

I feel like it could be some sort of clean reverb or reverse reverb