Definitions by Sianann

tail-bone tingle 

The strange sensation one experiences when looking at something completely disgusting, ex. someone with their eyes shot out and pus pouring from the wound.
When paticularly gruesome, can be called the dreaded "crotch tingle"

"Man, did you see the hole in Lia's back?"
"Yea, that really gave me a tail-bone tingle."

tail-bone tingle by Sianann November 18, 2005