Thou... Bootless Fen-sucked Apple-john
Parts of what makes up this insult can be found in "Loves Labours Lost" spoken by "ROSALINE":

This insult has been seen 1 time on this site. This was on Tuesday, January 4th, 2022And wait the season and observe the times
And spend his prodigal wits in bootless rhymes
And shape his service wholly to my hests

A total of 10686 insults have been uniquely generated 11193 times, with a total of 125000 (or 50 to the third power) insults available in the system!