14 Times Matt Damon Proved He's Absolutely Hilarious

After Jimmy and Ben Affleck teased Matt for not being on Twitter in February 2014, Matt sent both of them a "NSFW" fax with a scan of his butt, writing, "Faxtag: KimmelHasManBoobs." Of course, Matt's sense of humor came out for a cause, since the whole back and forth raised attention for a charity contest benefitting Eastern Congo Initiative and Water.org.