Everyone is Using Battle School Slang

Ho
kuso
toon
jeesh
buggers
the enemy's gate is down ...

--- spoiler alert ---

"Come on," he said to Valentine one day. "Let's fly away and live forever."

"We can't," she said. "There are miracles even relativity can't pull off, Ender."

"We have to go. I'm almost happy here."

"So, stay."

"I've lived too long with pain. I won't know who I am without it."

So they boarded a starship and went from world to world. Wherever they stopped, he was always Andrew Wiggin, itinerant speaker for the dead, and she was always Valentine, historian errant, writing down the stories of the living while Ender spoke the stories of the dead. And always Ender carried with him a dry white cocoon, looking for the world where the hive-queen could awaken and thrive in peace. He looked a long time.

--- Orson Scott Card, Ender's Game