This is one of two metaphors I found in Hoban’s book which mix two senses. Here visual overload leaves a sugary taste in the eye, while elsewhere he refers to sounds like the smell of old cooking.
‘Too much colour, leaving a taste of marzipan in the eye.’
Source: Russell Hoban, The Lion of Boaz-Jachin and Jachin-Boaz (London: Picador, 1979), p. 116
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