Means "No Problem At All".
Used allot among a group of people on efnet as a reply to "thanks for *".
<lamer> send meh taht mp3 plz
<lamer2> kwilldo
<lamer> kthx
<lamer2> npaa
by MF Sickness August 22, 2005
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NPA/NPAA stands for No Problem At All
NPA/NPAA can be used in sentences like

Hey thanks for cleaning my car”
No problem at all (NPA) or (NPAA) just acts of kindness
by Cxgoddess February 15, 2022
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