Friendship Reciprocity Ratio 

The friendship reciprocity ratio, or F.R. Ratio, is the ratio representing the unwritten friendship law that the sum of x-friend's purchases for y-friend should be equal to, or as close to equal to, y-friend's purchases for x-friend. The closer to "0" this ratio is, the more substantial the friendship. Any friend who is significantly negative in this ratio is a shitty friend.

Dave- Dude, Greg "forgot" his wallet again. Had to pay for his lunch again. Not to mention I bought him an Audi for his birthday last month and all I got was a misspelled "Hapie Berthday" on Facebook today.

Nate- Greg is a shitty friend. What's your guys' friendship reciprocity ratio at now?

Dave- I think he's got our F.R. Ratio down to -$3,000,000 now.

Nate- Wow dude, what a piece of shit.

Friendship Reciprocity Ratio by MasturNater July 1, 2014

alcohol to sound ratio

The ratio that dictates that the more you drink, the louder you talk.

The later in the evening we go to that fine restaurant, the more likely we are to be sitting next to a large and obnoxious group of folks who will personally demonstrate the alcohol to sound ratio for us.

alcohol to sound ratio by Dr Bunnygirl May 30, 2020

C2C Ratio 

Stands for 'Cunt to Cock Ratio' and refers to the ratio of women to men at a given event. It is rarely given as an actual number but its favourability is often discussed.

Person 1: "Hey, did you get any lovin' at Dave's party last night?"
Person 2: "Nah, his C2C ratio was shocking. Far too cock heavy."

Person 1: "What're you up to on Saturday night? Fancy coming to a housewarming party we're throwing?"
Person 2: "Depends. How's your C2C ratio looking?"
Person 1: "Very favourable. Amy's invited most of her gymnastics team along. We'll be knee deep."
Person 2: "Sold! What time's it kick off?"

C2C Ratio by The Tearing Highmen August 28, 2009

Coward's Ratio 

When a status (especially on Twitter) has significantly more likes than it does retweets/reposts/shares. Usually happens when people like or agree with a statement, but are afraid to share on their own profile for fear of being mocked or embarrassed. Usually involves taboo sexual remarks or embarrassing bodily functions.

If someone writes about how all of us have had a crush on a hot cousin at one point or another, and 9.4k people have liked it but only 37 people have retweeted it, that's the Coward's Ratio.

Coward's Ratio by Peter W-N February 26, 2019

tooth to gum ratio 

When more gum than tooth shows in your smile

"Ugh, what an ugly smile, horrible tooth to gum ratio."

tooth to gum ratio by Just The Facts July 30, 2008

Fatlad's Food Ratio

Basically this is the ratio applied to foodstuffs, by fat people whereby whatever the packaging states as how many people the foodstuff serves is divided by a minimum of 2. Used frequently in the North of England......

Fatlady: Says 'ere this cheesecake serves 4 people.
Fatlad: Well using Fatlad's Food Ratio, as we are fat, thats 2 people in our case!

Fatlad's Food Ratio by Your Local Hero February 21, 2008

imminent poop to poot ratio 

A formal ratio calculated that measures gaseous emissions at varying phases of needing to take a shit, postulating that the more imminent the turd, the higher the volume and rate of concurrent farting.

My father explained that during the process of the massive turd being passed, his lab assistant calculated the “imminent poop to poot ratio” and concluded that the ratio obtained had in fact accurately predicted both the proximity of the exiting turd to the rectum as well as estimating its unorthodox, gargantuan size, by measuring the flatus emitted.

imminent poop to poot ratio by Dr Bunnygirl September 12, 2019