Definition of "Coastie"

For eons, the Coasties have served as the final redundant safety systems of our boats.

1991 Jan-Jun, Bearkeley Breathed, “Coastie Etiquette: Proper manners during a Coast Guard Drug Inspection”, in Boating, volume 64, numbers 1-3, page 22

States and the US. Coast Guard cooperate to enforce rules in many state waters. However, the Coasties don't enforce navigation rules in land-locked waters that aren't open to commercial waterways, such as stand-alone lakes.

2009, Randy Vance, Power Boating For Dummies

Full of happiness as she shared her favorite barrier island spots by the light of the moon with this Coastie who'd managed to steal her heart.

2015, Lisa Carter, Coast Guard Courtship, page 159

Coasties can see them at Ettalong Diggers on Saturday.

2016 June 16, Terry Collins, “Eurogliders ready to revive old hits at Ettalong Diggers”, in Central Coast Gosford Express Advocate

Thousands of Coasties will join close the 3 million people voting across NSW tomorrow (Saturday September 9) in council elections.

2017 September 18, “The Coast Decides”, in Hit 107 (Adelaide)

It was an election promise by Prime Minister Malcolm Turnbull that won over many Coasties – continuous mobile phone reception and free Wi-Fi for commuters battling the long daily train trip to Sydney.

2017 February 23, “Central Coast commuters patiently wait for Liberal election promise of continuous mobile phone reception”, in The Daily Telegraph

Coasties will always remember the stunning array of poppies which spelled the word ANZAC on Terrigal's iconic skillion in 2016 or the display of poppies on the Gosford waterfront in 2015.

2018 April 4, Fiona Killman, “Central Coast Poppy Project's final tribute to the ANZAC Centenary”, in Daily Telegraph