Tail Bone Wet 

A very wet state of female arousal. To be Tail Bone Wet, a female is involved in sexual activity on her back and her state of sexual arousal and any moisteners make her so sloppy wet that her love juices overflow from the vagina, down her ass crack and dampen her lower back.

Roger had his girlfriend so turned on from all of the oral sex he was giving her that when he finally gave her the bone he reached around and grabbed hold of her ass checks and found her to be Tail Bone Wet.

Tail Bone Wet by Eaton Holgoode April 17, 2015

tail bone sex 

When you lay a female on her stomach and lubricate your penis and the crack of her ass, and tail bone section. Gently, without Penetration stroking back and forth, up and down until an orgasm is reached.

Let's have tail bone sex

tail bone sex by Joey Jaw Breaker May 12, 2008

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

Bonetail 

(n) the nickname you give your significant other when they have tailbone thats a little longer than normal.

I love my bonetail!

Bonetail by BooBear?Mofucka August 23, 2009