there was in kufa a man from the banu abdullah ibn ghatafan called tufail 2 he was the most successful of people in seeking banquets and weddings so he was called tufail alarais and that became a nickname 3 for him and a title by which he was not known. so everyone who had that taste was called tufail. this is from the words of abu alyaqzan 4.
وكان بالكوفة رجل من بني عبد الله بن غطفان، يسمى طفيل ٢ كان أبعد الناس نجعة في طلب الولائم والأعراس، فقيل له لذلك طفيل العرائس ، وصار ذلك نبزا ٣ له، ولقبا لا يعرف بغيره. فصار كل من كانت تلك طعمته يقال له طفيلي . هذا من قول أبي اليقظان ٤ .