Green’s Dictionary of Slang

prexy n.

also prex
[mispron.]

(orig. US college) the President (i.e. of a college, a corporation or firm, but also of America).

Yankee I 232/1: Our Prex says this:—You surely miss [etc.] [DA].
[US]Yale Banger 10 Nov. in Hall (1856) 375: But take a peep with us, dear reader, into that sanctum sanctorum, that skull and bones of college mysteries, the Prex’s room.
[US]B.H. Hall College Words (rev. edn) 375: prex. A cant term for President.
[US]Mem. Hamilton Collection 154: Prex Backus was a jovial Prex, / The roughest, kindest of his sex. / His lips let fly full many a joke, / And jests he woke that others spoke.
[US]L.H. Bagg Four Years at Yale 46: Prex, the president.
[US]Morn. Times (Wash., DC) 17 Jan. 2/7: Fiske was a wag and he made up his mind to cure ‘Prexy’ of [...] interrupting the boys in their declamation.
[US]E.H. Babbitt ‘College Words and Phrases’ in DN II:i 51: prex, or prexy, n. President of a college or university.
[US]N.Y. Eve. Post 11 June 6: If the various unpopular ‘Prexes’ would study the grounds of their unpopularity, they would find it in the quasi-servile position they have forced upon many of their faculty [DA].
[US]Topeka State Jrnl (KS) 3 Jan. 10/1: He had been chosen to administer the business affairs of the Western league [...] so Prexy Frank [...] assumed his new title without formality or flubdub.
[US]N.Y. Tribune 27 Apr. 12/5: Prexy Hudson of Valparaiso University.
[US]Wood & Goddard Dict. Amer. Sl. 41: prex, prexy. Collegese for president.
[US](con. 1900s) S. Lewis Elmer Gantry 67: She’d advise him whether he ought to tell Prexy and the YM. to go to hell.
[US]W. Winchell On Broadway 2 Oct. [synd. col.] I thought you’d be amused to know that the Wichita U’s prexy made a comment about you.
[US]Pittsburgh Courier (PA) 27 Jan. 7/1: Moe Gale, prexy of Moe Gale, Inc.
[US](con. c.1920) Green & Laurie Show Biz from Vaude to Video 160: The story would be ‘Loew toppers Nick Schnenck, Bob Rubin and prexy Marcus Loew [...] took an option on a corner site for a theatre’.
[US]E. De Roo Big Rumble 108: ‘I don’t wanna be president, Twitch.’ ‘What’s that mean.’ ‘You do. I don’t.’ [...] ‘Hey, hey, prexy!—’.
[US]J. Ellroy ‘The D.A.’ in Destination: Morgue! (2004) 150: The prexy got drafted, Cooley made prez.