Like the term "Two in the pink, one in the stink", this sentence represents 2 in the vagina, and 1 in the anus.

gay porn.

think about it.... a guy fingering a girl with two fingers in the vagina and one finger in the butthole. normally your pointer and your middle finger go in the pink and your ring finger goes in the stink!

a term used to publicly announce when someone has just made an idiotic comment. It usully starts with the countdown "three, two, one," followed by the person franticly pointing at forhead then pointing at person who made the the idiotic comment, then the person announce's "dick on your head" in an aggressive/lighthearted way, depending on how stupid the comment was.
can also be used as a greeting.

Your friend is in the hospital. Your other friend wants to call. You prank him by giving the area code and 555-1212. He calls the number not knowning it was information and asks the operator to speak to him. She says city your calling again and he asks for his full name again.

It is a gesture meant to indicate a sexual act, wherein the first and second fingers enter a vagina, while the errant pinky plunges into the anus; hence the "shock".

This is essentially the same as two in the pink, one in the stink, but it's silly.