A portmanteau of perpetual and newbie meaning a perpetual noob. A person who despite months and years of doing something is still completely incompetent. Also, Poob, P-nubs, etc...
Man: He's been all over the world, danced at dozens of festivals, and still sucks like a mother fucker. What a pewb.
Woman: P-nubs fo' realz.
Woman: P-nubs fo' realz.
by Xandering March 19, 2011