Last modified on 16 January 2015, at 00:59





  1. (UK, Australia) Sorry mate, I didn′t see you.
    • 2010, Matt Croucher, Flash Point, page 13,
      The motorist claimed Smidsy after the crash — ‘Sorry mate I didn't see you’.

Usage notesEdit

The acronym is used by motorcyclists and cyclists to describe traffic collisions in which the driver of a car or larger vehicle claims not to have noticed a two-wheel biker. Usually derogatory, in that the intended implication is often that the driver was not at fault (when he/she patently was). SMIDSY was also used as a title of a BBC series on road safety broadcast in the 1980s.

A related usage by the UK government is: LBFTS, for 'looked but failed to see'.