SMIDSY

1. AustraliaUKSorry mate, I didn′t see you.

   “SMIDSY?” Rich chuckled, “Yeah, car pulled out into me, then literally as the guy got out and looked at me lying on the road he said,'Sorry mate, I didn't see you,' S-M-I-D-S-Y.”

   2017, CJ Moseley, The Wrath of Atlantis: With Strange Aeons

plural SMIDSYs

1. An accident in which a larger vehicle hits a motorcycle or bicycle because the driver did not see the cyclist.

   The motorist claimed Smidsy after the crash — ‘Sorry mate I didn't see you’.

   2010, Matt Croucher, Flash Point, page 13

   2 more examples

   Bike instructor buddy Malcolm Palmer noted a few years ago that: "most SMIDSYs happen in urban situations, when the bike is travelling at 30 or under.

   2014, Kevin Williams, Tarmac Tactics

   Most riders come back and talk about their SMIDSY collisions and cornering spills but we hardly ever hear firt-hand about overtaking crashes.

   2017, Kevin Williams, Survival Skills, page 21