Definition of "giraffe"

A ruminant, of the genus Giraffa, of the African savannah with long legs and highly elongated neck, which make it the tallest living animal; yellow fur patterned with dark spots, often in the form of a network; and two or more short, skin-covered horns, so-called; strictly speaking the horn-like projections are ossicones.  examples

A giraffe unicycle.  examples

(Cockney rhyming slang) A laugh.

(Internet slang, uncommon) A very tall individual.