a bad ass chocolate drink.

A simple greeting often used from afar. Sometimes considered antiquated but still fun to say.

Slang for the children of a single mom. Deriving from the fact that if you sleep with her and spend the night, you will have to buy her kids a yoohoo the next morning.

a word sometimes used to convey excitement, particularly on facebook, by idiots who don't know that the word is just a chocolate drink. it should be woohoo.

A chocolate drink, but can also refer to really bad diarrhoea (yes that is spelled right).

Other diarrhoea slang: gippo guts

Can be used to express praise when used in the following phrase: "sweeter than yoohoo".

A yoohoo is someone obsessed with a certain muppet. Her home is usually R&S on yahoo answers and she trolls uncontrollably. A Yoohoo also makes others mad by stealing aways muppets. She is also obsessed with the Disney Princesses and she despises report monkeys.