Should rather be called "interchange of attributes." It consists in this: Christ, being God and man, two sets of properties can be predicated of this one person, viz., the Word, the second person of the Holy Trinity. Though He be designated by a name which connotes His Divinity, human attributes can be predicated of Him; e.g.,
God just born one hour
Behold Him fed on infant fare
Who feeds the feathered fowls of air.