ur mother- a comeback that can be used for... everything basically
person 1: Hey Rhoshandiatellyneshiaunneveshenk Koyaanisquatsiuth Williams, Whats up?
Person 2: ur mother
person A: Hey Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch, Wales, im so tired what bout u?
person B: Ur mothers tired