Somethingthat's sonot funny that if someone started saying funny they'd be interrupted by someone saying "nahhhh" before they finished saying funny, thus forming the klangfarbermelodie word funnah.
Also spelt funnahhhhhhhhhhhhhh.
When someone is funny and can't stop being funny and they never can stop but usually is just an good funny immature person who is usually a kid or a teenager or just some retarded person of some kind.