What does "to get lost" mean in English for Spanish?

In English for Spanish, "to get lost" means:

se perder

Listen to "to get lost": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

• English for Spanish 4, Level 2, Scene 3
• English for Spanish 4, Level 2, Scene 5