Thou... Froward Beef-witted Strumpet
Parts of what makes up this insult can be found in "Richard III" spoken by "GLOUCESTER":

This insult has been seen 2 times on this site. The first time was on Sunday, July 16th, 2017If they have done this thing, my gracious lord--
If I thou protector of this damned strumpet--
Tellest thou me of 'ifs'? Thou art a traitor:

A total of 10366 insults have been uniquely generated 10842 times, with a total of 125000 (or 50 to the third power) insults available in the system!