butt, ass, arse, buttocks, behind, booty.
From the song "Piece of Me" by Britney Spears "They still gon put pictures of my derrière in the magazine" =P
by HO NAHHH February 21, 2008
another word for ass or butt
"i think my derriere is less hairy than that french woman over there"
by LB skandoman April 04, 2005
the posterier, the buttocks
Her parents are always on her derriere.
by Light Joker February 14, 2006