What does 15-20 mean?

15-20 meaning in Urban Dictionary

("fiff-teen twun-tee", noun)A time duration that varies anywhere from one hour to never.

Sentence Examples with the word 15-20

For the purpose of the manufacturer of this salt these are assorted into a raw material containing approximately, in Ioo parts, 55-65 of carnallite (representing 16 parts of potassium chloride), 20-25 of common salt, 15-20 of kieserite; 2-4 of tachhydrite (CaC12 2MgC12 12H20), and minor components.

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