Big Mac Batter 

When you shove a cum stained Fluttershy body pillow in the face of your unknowing partner while screaming "Call me Big Mac" then hitting him/her in the back of the head with a horse dildo.

Last night I gave my wife a Big Mac Batter

Big Mac Batter by Underskor September 21, 2015

Big Mac Chicken Legend Sundae 

A joke made by Rooster Teeth in the Rooster Teeth Podcast #201.
It comes from a story Burnie Burns (the co-founder of Rooster Teeth) told about Daniel Gruchy (a friend of Rooster Teeth and fellow Youtuber) getting confused about the McDonald's menu, as he thought they read left to right instead of top to bottom, ending with the result "Big Mac Chicken Legend Sundae".

McDonald's Employee: Welcome to McDonald's, what do you want?
Dan: Um...I'll have a...um...
McDonald's Employee: We need you to respond sir, you're holding up the line.
Dan: Fine, I'll have a Big Mac Chicken Legend Sundae.
McDonald's Employee: Excuse me?
Dan: What, are they sold out or something?
McDonald's Employee: I'm sorry, I just...just pick something else.
Dan: How about a Chicken Nugget Sausage McMuffin Coca-Cola.
Gavin, who has been standing behind Dan this entire time, calls Dan a "fucking idiot", turns around, and walks away.

Big Mac Chicken Legend Sundae by ThatPyro August 21, 2016

Big Mac regret 

When you sit down to eat something at McDonald's and immediately wish you'd gone for a Big Mac instead.

Friend: Hey dude, why aren't you eating your McNuggets? Not hungry?
You: *Sigh* I knew I shouldn't have gone for this. Now I've got serious Big Mac regret.

Big Mac regret by scottmckenzie May 5, 2018

Big Mac'd 

1) Be "special sauced" by two "all-beef patties"
2) To be jizzed on by two guys at once

"Dude, did you hear what happened to Sarah last night?"
"No, what?"
"Me and Jason Big Mac'd her!!"
"NICE!!!"

Big Mac'd by Josh & Thalia October 22, 2008

big mac sauce 

When you boutta bust a fat nut

This bitch bouta get the big mac sauce.

big mac sauce by The best nut you have in your October 14, 2015

Big Mac Daddy

A pimp with clogged arteries.
(Big Mac + Mac Daddy)

Hey, ladies, whats sha- Ahh! My chest is ripping apart!!! Help!!

Big Mac Daddy by Zach G. January 15, 2004

Big-Mac-attack-o-phobia 

The fear of having a Big Mac attack and not being able to sexually satisfy the Big Mac. So you wonder if there is even any point in puting a condem on if the Big Mac is just going to lay there like a dead fish. I mean come on, where both adults here, if you don't want to be here then we should just call it off right now.....
I Love you Big Mac.

Jim looked up from his Fillet-O-Fish with longful eyes as Grimace finished off his Big Mac. Jim had never eaten a Big Mac for fear of suffering from Big-Mac-attack-o-phobia

Big-Mac-attack-o-phobia by Buck Futter September 24, 2006