Green’s Dictionary of Slang

(US campus) a toady, a sycophant.

1945		‘Campus Sl. at Minnesota’ in AS XX:3 Oct. 233/2: We hopped in the Son Chiot belonging to Jonathan Simonizer and drove off, waving merrily from the observation platform.
1996		Eble Sl. and Sociability 16: Jonathan Simonizer (a synonym of apple polisher, in which Jonathan ‘a kind of apple’ replaces apple and Simonizer ‘a brand of wax’ replaces polisher) for ‘one who curries favor’.