Green’s Dictionary of Slang

(US campus) to wander about; to leave quickly.

1978		in Rolling Stone 10 Aug. 53: The exhilaration of motor-vating on the highway [HDAS].
1983		S. King Christine 118: They had been out ‘motorvating’ for the day [...] ‘Motorvating’. That was his word for it. He got that from one of those rock and roll songs he was always listening to.
1996		Eble Sl. and Sociability 42: They also enjoy creating mock learned words that sound like polysyllabic borrowings from Greek or Latin: motivate or motorvate ‘move around socializing in a group; leave’.