Top definition
Abbr. No Fucking Shit Lady

From 'Die Hard'

Supervisor: Attention, whoever you are. This channel is reserved for emergency calls only.
John McClane: No fucking shit, lady. Do I sound like I'm ordering a pizza?
John: Man, I was so wasted last night
Edward: NFSL you puked all over your cat
by theessayprocrastinator November 10, 2009
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