Thou... Impertinent Clapper-clawed Strumpet
Parts of what makes up this insult can be found in "Richard III" spoken by "GLOUCESTER":

This insult has been seen 1 time on this site. This was on Wednesday, September 25th, 2019If 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!