Feargus

Decended from the ancient greek word 'furgus', meaning 'limpit'

anyone who sucks up to people, tags along, or goes out of their way to make friends with important ,popular or rich people, can be known as a 'feargus'. In southern eastern parts of England this person can also be known as a 'fuckpuss', which is slang for feargus.

To feargus someone is to constantly badger, agree with or stalk.