effin' 'n' jeffin' Share definition Flag Another term for swearing made popular by the Karl Pilkington during his XFM days. There will be no effin' 'n' jeffin' during the funeral. effin' 'n' jeffin' by bxnzi July 19, 2016 0 0 Get merch Get the effin' 'n' jeffin' mug. Buy Now — $32.95 See more merch
