look up any word, like lemonparty:
 
1.
A treat from Kinder that has an outer, hippo-shaped wafer shell filled with two kinds of cream. Comes in hazelnut and cocoa varieties.
Happy hippos are quite possibly the greatest thing in the history of eveything ever.
by dancinpete January 13, 2007
 
2.
a chinese who thinks they are white
dude look at that chinese person over there
they are such an Happy Hippo
by catherine123456 May 14, 2007
 
3.
A German treat that is pretty much a biscuit shaped like a hippopotamus with white and dark chocolate filling and chocolate sprinkles.
My mother went to World Market and got some Happy Hippos.
by EmeraldCat September 08, 2013