slang Two people or things considered as a duo or in tandem. "Gruesome" is used humorously, not as an accurate descriptor. Oh boy, the gruesome-twosome is here! How are you guys?
gruesome-twosome
(ˈgrusəmˈtusəm)
n. two people or things. (Jocular. Neither the things nor the people have to be gruesome.) Well, it’s the gruesome-twosome. Come in and join the party.