The crazy headache and full body soreness you get after a crazy concert, also possible injuries or sickness from drinks and a mosh pit at a gigantic concert.
"Dudeeeeee I have sick concert hangover from last night, my heads killing me!"
"That sick mosh pit gave me serious concert hangover"
"That sick mosh pit gave me serious concert hangover"
by Asdfghjkl:; August 26, 2015