What does 2 plus 2 equals 5 mean?

2 plus 2 equals 5 meaning in Urban Dictionary

if u have actually two little knives and two huge knives than u have actually five knives. as the mass regarding the two large knives could differ really equal the mass of three tiny knives for that reason u have 5 knives. two plus two equals five... 2 plus 2 equals 5