look up any word, like porb:
 
2.
ptn
power tripping nigga
ever since they made Tyrone manager he has turned into a ptn.
by dixie351 January 29, 2009
 
1.
ptn
Protect the Nest
PTN means keepin sure what's yours is yours, material or conceptual, e.g. money, honor, drugs, respect, property, integrity, etc.
by OGstreetraider60 April 14, 2010
 
3.
PTN
a children's therapy clinic located in Torrance, CA, often associated with random acts of kindness, strange luck and "helping" personalities.
This new job is amazing; it is soooo PTN.
by PTNer December 12, 2004