Slipstream

Matthew Parris says (today's Times):
`... Mr. Blair now hopes to slipstream behind a buzz-phrase from the Middle East, and
"unveil" a "roadmap" for convergence.'

Is it possible to slipstream behind a phrase?

It's a good and evocative image, so I'd say yes, you can. Never let it be said that our Tone ever let a bandwagon go unjumped upon.