Definition from Wiktionary, the free dictionary
See also pron.
Respelling of porn with middle letters transposed and o substituted with zero.
Alternative forms 
Derived terms 
- Derived forms include n0rp, pr0n spelled backwards, and prawn, based on the phonetics of pr0n and used to avoid internet content filters.
See also 
- ^ Dalzell, Tom (2010) Flappers 2 Rappers: American Youth Slang. Courier Dover Publications. p. 229