Definition of early day motion in English:

early day motion

noun

British
  • (in the UK) a formal proposal submitted by a Member of Parliament for debate in the House of Commons at the earliest opportunity but at no fixed time. Early day motions are rarely actually debated: their main purpose is to draw attention to a particular subject or area of interest.

    • ‘some 75 MPs have signed an early day motion calling for more Treasury research into the tax’