e·mo (??m?)n. Rock music characterized by confessional lyrics about emotional topics.[Short for earlier emo-core : emo(tional) + (hard)core.]American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.emo (?i?m??) n (Pop Music) a. a type of music combining traditional hard rock with personal and emotional lyricsb. (as modifier): emo bands. [C20: short for emotional rock]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014emoA variant of punk music in which the lyrics are highly personal to the performer and address emotional issues.Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited