1 definition by 2toN aka second to none

Top Definition
Pronounced 'En-Sas', positive acronym meaning no strings attached sex. Similar in use to ONS however usually used when it meant nothing to both parties.
trevor: so you seeing that girl now or what geezer?
tony: nah man, strictly NSAS, on the real.
trevor: seen?
tony: seen, she's safe wit that tho.
trevor: seen.
by 2toN aka second to none June 26, 2007

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