A college professor. Slang.

1

1838.  

        The wise ones and the great,
Who guide the helm of state,
    Let others praise;—
For Proffs and Tutors too,
Who steer our big canoe,
    Prepare their lays.
Yale Lit. Mag., iii. 144 (Feb.).    

2

1855.  See PONY. (Id., xx. 188.)

3