Jacobinic terrorism.    From Wordnet, Princeton University. 

I think he ought to shew his Arm and shoulder and back to Austin and Jarvis and the democratic and Jacobinic societies.    From Wordnik.com.  [Letter from John Adams to Abigail Adams, 13 April 1797] Reference

Should say, with Jacobinic grin.    From Wordnik.com.  [The Complete Poems of Sir Thomas Moore Collected by Himself with Explanatory Notes] Reference