Two words mixed together in one short and more simple word.

Or + did

stands for Obsessive RENT Disorder-Someone who is obsessed with RENT. They know every word to every song, have seen BOTH the movie and the play, and love it to death. They know every little detail, from the fact that 'Take Me Or Leave Me' was added two rehearsals before show time, to the precise differences between the Movie and Stage show, such as...the beginning to I'll Cover You isn't "Cold", "Come on", it's "Alone at last..." "...Darling, we're everything", and Take Me or Leave Me belongs in Joanne's loft, not the Greenwich Village Country Club.

(1) Individual who mimics the language/actions/behavior of someone else because he lacks originality/creativity.
(2) Used to acknowledge emphatic agreement with someone.