Atomic Strangle-Hold

My boss used a great expression today. I think it's a mixed metaphor, I don't really know for sure. We're discussing some issue she doesn't understand, and asked someone to fill out some data in a spreadsheet "Just so I can get my hands wrapped around it." (I think she meant to say wrap her brain wrapped around it). Sounds like a Freudian slip, and she wants to strangle this guy!