Redinass 

The slight irritation of skin around the anus, as a result of having a penis forced up one’s anal hole too many times in a minimum-security prison.

Kobe was lucky. He was gonna get a bad case of redinass.

Redinass by harrium and plester March 12, 2005

reminassing 

1) Fondly remembering the remarkable buttocks of former lovers.

2) The act of reflecting on one's own formerly remarkable buttocks, that may have somewhat succumbed to gravity and office jobs.

1) That super-fine, muscular bicycle rider in his tight bike shorts sure has me reminassing about my ex. *sighing with a smile*

2) At the gym the other day I was reminassing about how firm my but used to be, tell you what. *sighing wistfully*

reminassing by lizziewizzie12 September 26, 2012

Reinassance 

Some people mistakenly named it Reinassance instead of Renaissance.

Reinassance isn't the word.
Renaissance is.
ˈrenəˌsäns

Some people used it to display their nick name to look cool.

Reinassance sometimes seen as a cool name or sort of.

Reinassance is not a word.

Reinassance by Reinassance March 17, 2019