Witty, comedic rap can be a tough sell. Do the listeners get the joke? More importantly, do they care? But when referring to Pittsburgh’s Grand Buffet, this point is moot. Dispensing tongue-in-cheek rhymes, irony-drenched choruses and intentionally lo-fi, dance-friendly production, the rap duo Jarrod Weeks and Jackson O’Connell-Barlow shows no love for popular opinion. On tracks like “Americus (Religious Right Rock),” GB’s satiric religious/political banter and bubblegum beats, underpinned by the duo’s razor-edged wit, induces teary-eyed laughter. Although some listeners might question the creative approach, the candy-like appeal is undeniable. Rap delicacies never sounded so sweet.