The
psychological and physiological state resulting from a long lovemaking session, often seen in women after multiple orgasms or a strenuous sexual workout.
The physical signs: drooping eyelids, slurred speech, silly grin, sexual flush around the neck and upper chest region, sweaty skin, exhaustion, beet-red thighs and buttocks,
overworked sexual organs.
The phrase is derived from the common slang "stoned" for being
under the influence of marijuana.