What is a rusty trombone?

Q: In the movie The 40-Year-Old Virgin, the character Mooj refers to rusty trombones, dirty sanchez and cincinnati bowties... What are those things?

A: You will not ruin my New Year's resolution. Look up slang terms at UrbanDictionary.com.

How do I get a girl to go down on me?

Q: How do I get a girl to go down on me?

A: Go down on her first.