The surviving fragments of Hipponax show him to have been "a very nasty man", but also provide an early reference to waffles. Athenaeus 14.645c quotes:
τοῦ δὲ ἀττανίτου Ἱππῶναξ ἐν τούτοις μνημονεύει (fr. 26a West)·
οὐκ ἀτταγᾶς τε καὶ λαγὼς καταβρύκων
οὐ τηγανίτας σησάμοισι φαρμάσσων,
οὐδ’ ἀττανίτας κηρίοισιν ἐμβάπτων
Hipponax mentions the waffle in these verses: "not champing on partridges and hares, not seasoning pancakes with sesame, and not dipping waffles in honey..."
[adapted from Gerber's translation]
We have no further context to help us understand why these abstinences were some character's salient characteristics.