"Go away" (said very angrily) - informal, to 2 people.
"Don't leave" (like...asking someone not to leave/abandon you). In very informal speech please. To one person.
And also the phrase:
"Say, Lithuania... I was just pondering... what it would be like without a heart..."
(meaning the person is thinking about what it would be like if he had no heart, and couldn't feel anything). And yes, the name of the other person is "Lithuania" (don't ask).
Thanks in advance! (I'll edit if I have any more)