Thou... Wayward Flap-mouthed Wagtail
Parts of what makes up this insult can be found in "Richard II" spoken by "DUKE OF YORK":

This insult has been seen 1 time on this site. This was on Sunday, February 14th, 2021I do beseech your majesty, impute his words
To wayward sickliness and age in him:
He loves you, on my life, and holds you dear

A total of 10643 insults have been uniquely generated 11145 times, with a total of 125000 (or 50 to the third power) insults available in the system!