Measurement pertaining to the penis being 2/3 of a foot or eight inches long.
I am in the 2/3 club because my dick is 8 inches
by Qbano October 16, 2007
The nontrivial solution to the equation a + b + c = a × b × c, where a, b, and c are positive integers—the sum and the product of three whole numbers are the same.
Besides 1 + 2 + 3 = 1 × 2 × 3, the numbers 1, 2, and 3 form the set of three integers such that each divides the sum of the other two, and their reciprocals show that the number 1 can be expressed as the sum of three unit fractions: 1 = 1/2 + 1/3 + 1/6.
by Fasters May 11, 2022
A rule that states that if a food item sounds 2/3 good, it must be good.

Originated at a Taco Bell, whereupon the creator was deciding whether or not to buy a Caramel Apple Empanada. The creator had no idea what an empanada was, but caramel and apple made it sound 2/3 good. The Caramel Apple Empanada turned out to be delicious, and thus the 2/3 rule was born.
Indecisive customer: "What's fried chocolate guano?"
Friend of indecisive customer: "I don't know, dude, but it sounds 2/3 good. By 2/3 rule, you have to try it."
by Rhiever April 22, 2009
The solution to the equation a + b = c, where a, b, and c are consecutive integers; or where b = a + 1 and c = a + 2.
If 1 + 2 = 3 and 4 + 5 + 6 = 7 + 8 are the first two terms of a sequence of equations, what is the sum of the third equation in the pattern?
by Fasters May 7, 2022
The first four numbers in the alphabet.
1, 2, 3, 4.
by 1234manzs October 4, 2019
one love - two hearts - three words - forever.
1 2 3 4 - also used as 1234 is another meaing for "i love you"

EX - 1 2 3 4 JMB <3

can also use - 123, 1234, 321, 4321.
other ways to say i love you - 143, 831, Ti amo
by BRITANEY July 6, 2007