Having a Giraffe!
Tom: Do you think Liverpool will win the Premier League next season?
Gary: You're having a giraffe! They've got no chance of winning anything.
Having a giraffe - English slang for having a laugh or saying something silly.
This is an example of Cockney rhyming slang. This type of slang originates in the East End of London. In this example giraffe rhymes with laugh.
like this slang! But Giraffe always looks gentle like a Miss.
The giraffe is an elegant animal! I agree, they always look so gentle.