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1.
The chemical name for table salt. consists of a Sodium atom and 1 Chlorine atom ionically bonded.
I put sodium chloride on my dinner.
by 5'1"Racer October 09, 2005
 
2.
Used to replace the word 'back' in a sentence.
So used as 'back' is often miss-typed as 'nacl' in instant messaging.
''Mate, when will you be Sodium Chloride?''
''You Sodium Chloride?''
''I'll be Sodium Chloride in an hour or so.''
by gravy123 August 19, 2011
 
3.
The product of a reaction between sodium and chlorine extremely vigorously. The product, sodium chloride, is highly toxic, and should not be consumed, as anything more that 1 part in 10 will kill you, on the spot.
Mmm, sodiumy
by chachacha February 12, 2004