A person, for reasons unknown to mankind, who has to impress porcs and swine by acting in a provocative and mildly unsexual way. Also coupled with this is a thin sheen of orange gloss which covers every inch of the persons body. The result is in fact an oompa lumpa with an overactive sex drive.
Tasha: OMG samantha, did you see kandy today acting like a complete wotsit
Samantha: Yar, I know. Ewwww, that is totally unfetch. She basically smells of porc now
Tasha: Totally
Used to indicatethe person is a pain in the bum or an arsehole, but in a cheeky way. Used commonly in the UK, usually about young children or animals.
"Little billy is a right little wotsit, I caught him stealing the teachers sweets" or "That cat is a little wotsit, I caught him shitting on the sofa again"