look up any word, like slope:
 
1.
Someone unused to being naked outdoors. Used by nudists to denote people uninitiated, or recently inititated, to nudism. From the untanned color of such a person's posterior.
Not wanting people to think he was a cottontail, he spent time on the sunbed to get rid of his tanlines.
by Thaddeus Hamilcar Murphy July 14, 2006
 
2.
A type of drunkenness where one speaks at an annoying lower level of intelligence often repetitive and antagonistic in nature.
Wow Justin, put down that JOOSE you're getting way to cottontail. -noun

After that game of quarters, Justin was cottontailing pretty bad. -verb
by Michael Quinones November 22, 2007
 
3.
A female's buttocks that are particularly whiter than the rest of her body, often due to lack of sunlight in that spot.
The tan girl took off her underwear and I saw she had a cottontail: her ass was very pale in comparison with the rest of her body.
by cottontail guy January 21, 2008
 
4.
When a girl's panties or underwear is sticking out over her jeans. Most commonly noticed when person is bending down; also strangely common among thongs.

When a girl's panties are hanging out, showing you a glimpse of her undies.
"Hey man, check out that cottontail standing in line at the bar."

-or-

"Ma'am, I don't mean to be rude, but you have some serious cottontail back there."
by JoeGamble August 27, 2007
 
5.
A sex act in which a man ejaculates on his partner's buttocks.
See pearl necklace.
After having sex from behind, he pulled out of her and gave her a cotton tail.
by Widght October 05, 2011
 
6.
Cottontailing occurs when a piece of toilet paper rips during mid wipe, leaving a small piece of T.P stuck to lingering poop. As a result, the victim is left with a "cottontail" protruding out from the middle of the butt crack; resembling a small white tail, much like a cottontail bunny rabbit. This can also be referred to as a Rabbits Foot. Although contrary to rabbits feet, cottontailing is not lucky.
Bro, i went to pull up my pants and caught a glimpse of myself in the mirror sporting a cottontail
by MiddleBrazil June 23, 2013
 
7.
the hair around the anal orifice on a female
"oh man i was slamming that bitch analy and her cotton tail grabbed onto my bush"
by mikethedyke October 20, 2006