Sit on this DICK is a sexual meaning used for asking for a lap dance.

Aka SOADAS; An insult equivalent to go fuck yourself. Often used to end an argument leave the person shocked and speechless. If used properly win everytime.

Telling a female to ride the dick in a cruel way

A phrase used when a girl would like the full attention of the guy she is talking too. Often the girl will actually sit on the guys lap and ask him the question.

Sit on a guys dick girls

When you sit down and your jeans bulge to give you a giant-looking dick

The penis in it's normal state. Flaccid with no stimulation.