A bisexual person who, contrary to the stereotype of bis wanting to make love to the world, is actually quite reserved and is not a fan of random public affection. The opposite of "fluffy bi."
by ladyofthelowlands2 May 13, 2011
Get the Spiky bimug. by 8≤eçàm349ñ April 6, 2016
Get the bi-flirtymug. Charlie Sheen: "I am bi-winning"
by nycbobcat March 17, 2011
Get the bi-winningmug. by Not chinese chinese August 5, 2018
Get the Zhuang bimug. 

