Big Brain 

A time when an idea or an analogy is used tactically.

He plays minecraft instead of fortnite he is big brained

Big Brain by InkSwarm Nation YT October 27, 2019

Big Johnson

An often used synonym for a man's penis.

Hey baby, Big Johnson's back at my place waiting for you."

Big Johnson by vector August 21, 2004

Big Rudy

A kinky name Peter Griffin likes to be called while getting his back scratched with a matchbook. His wife Lois won't call him by this name though.
Taken from a gag from the TV show Family Guy near the end of the episode "E Peterbus Unum"

"Every night when you get home from work I'll scratch your back with a matchbook like you like"
"Awww Lois....Will you call me Big Rudy when you do it?"
"No."

Big Rudy by Primo Jonez August 31, 2007

Big chungus 

The god that stands above everyone else.

She thicc like big chungus

Big chungus by XxX_69_Epic_games_69_XxX January 6, 2019

Big Thunder 

A fat ass lip that gives you strength on and off the mound

"I threw in a big thunder, beefhawked, and settled into the pitch."

Big Thunder by Andre Barsanti January 22, 2008

big ol' 

A phrase tapped onto a noun giving the object in question more significance, or importance. The object in question does not need to be relatively big or old.
It originated in the south and has spread throughout the US.

That F-150 was a big ol' truck, I like it.

big ol' by Ron_Thornbrash May 23, 2005

Big Butts 

Sir Mixalot likes them and he cannot lie-- His other brothers can't deny.

Sir Mixalot: I like big butts and I cannot lie.
Other Brothers: We can't deny.

Big Butts by Sir Anthony Ray March 3, 2009