The Big Dirty 

A grand criminal scheme in order to make enough cash to retire. Often used in the show "Trailer Park Boys".

Julian : Ok boys I gave an idea thats better than the big dirty.
Ricky : There is no way were not doing the fucking big dirty Julian. I wanna retire on the spot.

The Big Dirty by Who is LMFAO June 12, 2018

The Big Dirty 

1. An ex Boyfriend/Girlfriend that will never leave your thoughts.
2. The one emotional relationship that you never fully get over. Often, this relationship is one you will compare new relationships to.

Sure she's pretty, but she's not as pretty as The Big Dirty was.

The Big Dirty by MaWilliams September 4, 2010

The Big Dirty 

What people call a small town named "Brantford"

the big dirty

The Big Dirty by ssssshhhh July 21, 2011

The Big Dirty 

A bar located in Waterloo Ontario, CA. More commonly known as "Phil's Grandmothers Basement". An establishment that serves cheap alcohol, while also having a rather charming aroma of vomit and B/O. One a the few first bars in Canada to adopt the "the bathroom is where ever you feel like it" mentality. A phenomenal place to meet people for the type of encounter that wont last the next morning.

Q: "Hey man what are you up to tonight?"

A: "Nothin' much just headed down to the big dirty for 1 or 9 beers."

The Big Dirty by Phanfan February 7, 2010

The Big Dirty Special 

After sex, a guy squats and ejaculates and shits on the girl's body(can also work in the girls mouth)

Jon was preparing for The big dirty special after sex.

The Big Dirty Special by U suck balls ehhh April 17, 2009