Wiktionary
singsonging
vb. (present participle of singsong English)
Usage examples of "singsonging".
The only member of the little group who remained unaffected was Ab, singsonging irrepressibly behind Flinx: "Neutron, neutron, who you are, why is an organ camelbar?
Behind Flinx, Ab was arranging stones in a circle (ordinary stones, this time) and singsonging softly to himself.
Voices were chanting, singsonging four words over and over unceasingly.