0 completely accurate or correct: --
He's a dead-on guy.
"Is that a fair assessment?" "I think that's absolutely dead-on."
She could do dead-on impressions of her boss.
He amazed them all by making dead-on predictions.
1 exactly: --
The results were fifty-fifty, dead on.
You're dead-on right about that.
The projections for how much the tax would bring in were almost dead-on correct.
The opinion polls before the election turned out to be dead on.
Set in the late 1950s and early 1960s, "Mad Men" was a dead-on depiction of the era, with its vast inequities between the sexes.
To me, your insights about work and life usually seem dead-on.