(Anonymous) 2013-04-07 06:31 pm (UTC)(link)
If we're using seme/uke language, that kind of bottom is called a "sasoi uke".

http://bangin.wordpress.com/2007/08/03/the-classification-for-%E6%94%BB%E3%82%81seme-and-%E5%8F%97%E3%81%91uke/

(Anonymous) 2013-04-07 08:50 pm (UTC)(link)
Oh God I hate when people pop up trying to defend seme/uke BS by saying "but there are so many different types!!1!1!!!!111" Makes me want to puke.