gook

A person of (South) East Asian descent (originally revolutionaries of the Katipunan then generally to any native of the Philippines, after the enemy and collaborators hid amongst them), but now especially:

A few days later he had a 'damned good party' at NORMASH, drinking brandy, and he then 'beat up a Gook [Korean] village.' This resulted in an 'awful hangover all day', […] Later, he walked back to his unit, alone at three o'clock in the morning, having 'swiped a Gook torch.'

A person of (South) East Asian descent (originally revolutionaries of the Katipunan then generally to any native of the Philippines, after the enemy and collaborators hid amongst them), but now especially:

Of course, I've got so many confirmed kills I lost count. Nobody believes me because the gooks drag off their dead.

A foreigner (to the speaker), especially the (enemy) natives of a place the speaker's military is at war with or in.

"Haiti is a country with a history, […]" "but how about the Marines, and the gendarmerie; aren't they on the job?" […] "You know darn well a civilian can't get away with handling a gook like a Marine can; […]"

In scenes [in Flight, 1929] based on the Marines' slaughter of several hundred Nicaraguan rebels at the Battle of Ocotal in July 1927, the two heroes, who are rivals for the hand of a vivacious nurse (Lila Lee), repeatedly attack the "gooks" in support of their comrades on the ground.

A foreigner (to the speaker), especially the (enemy) natives of a place the speaker's military is at war with or in.

"But shit, man, don't we do a fucking good job of it. Jesus, we slew long gooks this last trip," quipped Mark.

Grime or mud.

"Roost No More" was a yellow gook that Joe's people would spread around, for a fee, on the ledges of houses and commercial buildings plagued by pigeons.

A dull or hapless person.

the poor old gook was spitting blood