A mangagenius! For some reason, this is a comic dialogue or two man comedy. Look up "manzai" on YouTube for some good times if you don't know what this is. It's not exactly the same, but 漫 DOES refer to manga, which is a type of comic book. Take the "comic" part from "comic" book, then change it to the "haha funny!" meaning of "comic," and then imagine people doing a dialogue. Then, you have a comic dialogue. Lots of steps, but hopefully it'll get you there.
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own. Watch out for the rendaku.
Watching two man comedy acts and laughing loudly relieves my stress.