"Bag of Bags"
1) A person with the qualitative characteristics of at least three or more negative associations with the word bag; exe: douchebag, scumbag, slutbag niggerbag, dirshbag…ext

2)A title or epithet given individual whom has achieved grandmaster level in one or more categories of the negative connotation of the word bag.     

"That person, which is so ridiculously vulgar that I won’t even honor by mentioning their is the "Bag of Bags". 

South Park: “John Edwards is the biggest douche in the universe.” (He is the "Bag of Bags") 