finger rocket 

When your girlfriend does a countdown to lift off in your brown star.

Keith told me Sally knows how to finger rocket a fella.

finger rocket by Benecio Del Boro. January 31, 2017

Rocket Finger 

a sexual position for gay guys. One man sticks his middle finger up the other mans ass right as he cumms

If the man says he has a "Rocket Finger" then he is gay. Sometimes a guy will have a flame tattoo on his middle finger, this is the mark of the Rocket Finger

Rocket Finger by skratchez January 22, 2009