A portmanteau of the words "pest" and "Testicle" used to describe any acquaintance of whom is getting on your nerves a bit or has become a nuisance in a non-threatening, joking manner.
Jesse has been harassing me for months now with DEEZ NUTSjokes, what a pesticle!
Coined by a Mr. Daniel Desroches of whom was also known as NAD in the mid 90s.
