an expression that is or has been used too much (and how has no meaning or usefulness)

overused, hackneyed phrase

(the seeds of) any of various green plants e.g. wheat, oats, rye

dull, overused saying

a style of a language full of technical or special words

specialized language; dialect

a remark or statement that is obviously true but is used too often and is not interesting, e.g. 'Life has its ups and downs'

dull, overused saying

boredom

dullness, monotony