The unexpected feeling of intense pleasure gained by inadvertantly hearing a song that you heard when you were on MDMA; a state that reminds you why you do drugs; yet more evidence of the positive long-term effects of psychoactives.
"Fuck me, what's this song?"
"Skream's remix of In For The Kill by La Roux, why?"
"I feel so pleasant right now...it's totally giving me a de ja high...
To lose most of the words in one's vocabulary and / or the ability to form real sentences for a few days following an MDMA binge; the mental equivalent of the physical damage caused by hangovers; the results of a brilliant night out.
"How was Hype last night?"
"Good, man, he was erm, I did the thing.."
"There's no point asking Tom, he's got a serious case of the vocabubads."