After giving an enthusiastic tart a good seeing to upon exiting there can sometimes be a rush of air from her twat.This is most common with a slack one.
Fannytastic can be used to describe an action or person, in a situation where plain old "fantastic" doesn't have the magnitude to convey the importance.
Being Fannytastic can imply a lack of restriction within imagination, suggesting that someone who is Fannytastic has magnificent ideas that could take you to the moon!
Correct usage in a sentence: "Did you hear she’s picking up her life in France to move to Australia?"
Response: "Damn, that’s Fannytastic!."
A group of five or more fuckable women that rate higher than a seven, which makes a great variation of fanny. Almost like a small nation of fuckable fanny.
Two month period of January and February where ladies are generally easier to obtain due to having been dumped just after Christmas (after their boyfiend has had their presents), and they can't cope the Valentine's period without having a boyfriend.
"I can't believe he dumped Rachel after she bought him an iPhone for Christmas."
"I don't care - it's Fannyuary, so she'll be easy. Maybe I'll dump her, too. The day before Valentine's Day, so I don't have to buy her a present."
Mark's favourite time of the year is Fannyuary when all the girls are on the rebound, and he can get some pussy.