Hunk Rump is a popular brand of gay pornography magazine and an ongoing gag featured throughout the MS Paint Adventures. There are also Hunk Rump cards
and calendars as well as a different brand of magazines called Black Inches and Hunk's Junk
. Hunk Rump pornography has been known to make Elves cry.
In the continuation of Jailbreak, an issue of Hunk's Junk is forged into a mighty Paper Sword.
In Bard Quest, when the Bard asks the blacksmith for +5 issues of [his] finest gay porn magazines he is thrown out of the store with a Humk Rump magazine.
In Problem Sleuth extra number 26, a trading card game addition to the franchise is added in the form of Hunk Rump: The Gathering.
In Homestuck, Dave's Bro's website "plush rump," may have been inspired by the Hunk Rump magazines. Furthermore, Snowman owns a whip called Black Inches. Clubs Deuce from the trolls' session of Sgrub carries an issue of Black Inches in his inventory. The cover of Vol. 9 depicts Jake English holding a Hunk Rump card in his hand, along with normal playing cards, much like the Problem Sleuth donation command.
Trivia
Incidentally, a fan has registered http://www.hunkrump.com/ in homage to MS Paint Adventures, but it has since been deleted.