flesh (something) out or flesh out (something)
to make something more detailed or bigger
We worked hard during the weekend to flesh out our agreement.
Fastest Things Known To Man
Fastest Crash Test
Although EuroNCAP usually crashes vehicles at a measly 40mph to assign production ratings, they decided to do something worthwhile last year when they crashed the Ford Focus, one of their safest vehicles, into a wall at 120mph. Their conclusion? Dont crash your Ford Focus into a wall at 120mph.