rubbisher1
/ˈrʌbɪʃə/noun
1A person whose ideas or writings are considered worthless or inferior. Now rare.
2A person employed in a quarry to carry away waste material.
Origin
Mid 19th century; earliest use found in Bombay Quarterly Review. From rubbish + -er.
rubbisher2
/ˈrʌbɪʃə/informal (originally Australian )
noun
A person who criticizes, disparages, or ridicules.
Origin
1960s. From rubbish + -er.