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A large woman who doesn't bathe, has a uniroll, and has a yeast infection from the crack of her ass up through her vigina following upward to and around her uniroll. That is the big nasty.
big nasty by Thomas November 3, 2003
Any large person who refuses to engage in daily personal hygiene, often smelling of rancid garbage and/or rotten cheeseburgers with onions on a hot day. Also the same person who refuses to courtesy flush who may have had a gastro sleeve whose stool is unbearable to the point of choking and/or vomiting.
Oh oh, get the spray out....here comes Big Nasty!
Big Nasty by Unc Vinny September 27, 2019
having intense and loud sexual intercourse.. getting sweaty and just down right flithy...
The hubby and I just got done doing the Big Nasty.... :D
big nasty by blls May 11, 2011
Any mixture of various foul alcoholic beverages and/or liquors which is more revolting than the sum of the individual components.
After losing the bet, I had to chug a Big Nasty.
big nasty by glenn hayes September 30, 2003
bieng a staight up beast who is great in the sack and beatin down bitch ass mufuckers
hey im bob but you can call me big nasty

omg lets fuck
big nasty by kjasflkdsjalk July 17, 2009
A crazy ass guy in albany kentucky, Who doe's a lot of insane nasty shit.
Door salesmen: Hello, We came to sale you a bunch of shit today.
Big nasty:Wanna see me open a beer bottle with my asshole?
Salesmen: Umm, excuse me sir?
Big nasty: |drops pant|
Salesmen: Umm, We can see your not interested, have a good day.
Big nasty by The ugly bastard January 24, 2014