You ESCAPE from somewhere that has walls or chains, but you abscond from somewhere where the only deterant is that you are not ALLOWED to leave, but there are no physical confines e.g. .
To steal a sexual favor from a secondparty in a very seductive and forthright manner.
Man... you really absconded that ass last night didn't ya? cmon... dont lie... ooooo ya you did, C'MON be honest, you a ddoooggg, oooo ya, way to GOOOO. W00T, ABCOND THAT BOOOTAY