Residual grease found in ones butt crack. It may stem simply from sweat or sex liquid having oozed back there (or maybe sex actually having taken place there with the aid of KY warming liquid or baby oil). The person with the malady may feel an odd slippery sensation when they walk, shift in their set, or sit down.
I felt my butt cheeks slide in opposition to one another after having an explosion of butt grease caused by my queef barfing out lots of spunk and splattering my back door.
DOUBLE originally consisted of the two sister Takako and Sachiko who hit the J-R&B scene in Febuary 1998 with the fresh new single 'For Me'. DOUBLE climbed their way to success but this was cut short - the group was hit by a painful tragedy in May 1999 when Sachiko passed away due to a brain hemorage.
Takako decied to carry on the recording using the name DOUBLE and shortly after returning to the music scene in 2000, released the maxi-single 'Angel' in memory of her sister Sachiko, which shot straight to the top of the Oricon.
Today Takako is seen as one of Japan's most influencial and successful R&B artists.