Definition of "hooter"

Suddenly, far down and beyond the toun there came a screech as the morning grew, a screech like an hungered beast in pain. The hooters were blowing in the Segget Mills.

1933, Lewis Grassic Gibbon, Cloud Howe, page 34

When the right-away was given, Driver Gibson would give a sonorous blast on Cardean's deep-toned hooter, and amid a flurry of swirling steam the train would move majestically out, with nearly half the city of Carlisle—or so it would appear—as onlookers on the platform.

1945 May and June, Cecil J. Allen, “British Locomotive Practice and Performance”, in Railway Magazine, page 152

A chime whistle, presented to the L.M.S.R. by American model railway enthusiasts in 1939, is installed now as a works hooter at Crewe Works, as its height precludes its use on a British locomotive.

1946 September and October, “Notes and News: Locomotive Whistle Gift”, in Railway Magazine, page 322

Aye, it may be a joke to you, but it's his nose. He can't help having a hideous great hooter! And his poor little head, trembling under the weight of it!

1964, A Hard Day's Night, spoken by Grandfather (Wilfrid Brambell)

Somebody yelled, ‘You bit off a bloke’s nose in Ireland.’ The story was that I’d amputated his hooter.

2014, Vinnie Jones, It's Been Emotional, page 118

There, nestled in one of her gloved palms was a massive, blue-veined hooter with a pus-filled bump on it the size of a pecan. It was his hooter and his pus-filled bump. ¶ “You ole rascal,” she said, and gently lowered his dick between his legs.

1994, Joe R. Lansdale, Bubba Ho-Tep, page 23

He called it “Hooterville,” mainly because he was such a fan of Petticoat Junction, and he really enjoyed getting his hooter worked on.

2006, Eric Mawson, Oil and Vinegar: A Conscripted Soldier in the Vietnam War‎

G.G. understood that I meant the licence, and said he didn't care a hooter about failing his driving test.

1969, Jerzy Peterkiewicz, Green Flows the Bile, page 25