Burn-Tan
A burn-tan occurs when the original subject burns after being in the sun for a number of hours and then within 24 hours appears only tan and not at all burnt.
Lucky bastard burn-tans.
Burn Tan
When you burn really badly, then in a few days it fades to a color that vaguely resembles tan.
I totally burned when I went to the beach a couple days ago, but now I have a totally sweet burn tan!