BTS Ratio

Boob to Stomach ratio. This has to do with the proportion of the boobs sticking out farther than the stomach. Standards are dependent on preferences, but any ratio that has B bigger than S is good.
Alan- I like a 3:1, thats probably perfect for me, but I'd date a 4:2 or maybe a 3:2
Bret- last night you took home a 6:4
Alan- yeah. I double the BTS Ratio when I've been drinking
by Tony Oats May 03, 2007
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EF ratio

A man's erect/flaccid ratio. Can be calculated using inches or centimeters, as the ratio will not change.

A penis which is 6 inches while erect and 3 inches while flaccid will result in an EF ratio of 2.
Just cuz your dick is 4 inches while soft as compared to my 2 inch soft dick doesn't mean it's bigger. I have an EF ratio of 4, while yours is 1.5
by I M A Dogg March 17, 2009
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In/Sent Ratio

The ratio between your received texts (inbox) and Sent texts (outbox). If your outbox has more texts than your inbox than you are probably a loser whose friends don't wanna text you back. If you inbox has more texts than your outbox, you probably have friends and are cool.
Karl: Dude! I feel so great right now I just checked my In/Sent Ratio and it's 146:130

Kevin: That's awesome!
by RT Master February 08, 2009
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the dave ratio

In any given engineering environment, the number of Daves will be greater than or equal to the number of women.
Carrie was always in the minority in her computer science classes; she had more Dave classmates than female classmates. The Dave ratio meant that she always knew more Daves than women.
by Pierceer February 10, 2017
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The DA Ratio

Named after a famous scholar, the David Allen ratio is calculated as follows:

DA = (Alcohol %) ÷ (Cost of Drink)
Wow, thats a great deal! 10% beer for $5. The DA ratio is 2.0. AMAZING!!
by Academic Scholar September 18, 2011
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Ratio bomb

When a guy brings only guy friends to a party that had a good female to male ratio, and thereby messes the ratio turning the party into a sausage fest.
Laurent is mad at Romeo because Romeo walked into his party with a ratio bomb.
by Frenamezian November 26, 2011
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STD ratio

A STD ratio is a simple acronym for Slut to Dude ratio. This helps when going into a bar and seeing if it is worthy of your patronage. A high STD ratio would mean there are more sluts than dudes, while a low STD ratio would mean the reverse.
Hey bro, I was just in Waterman's and the STD ratio was at least 3:1. I was super stoked. Lets do some G.
by zeroisgod February 27, 2011
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