often connect to fan fiction; ideas or events that are accepted by most fans, but were not actually in the original story/book/show etc.
In Death Note fanfics, Matt and Mello are often a fanon pairing.
A band from Buffalo, New York, led by John Rzeznik. Most poular song being Iris (in the film City of Angles), a few songs by them are:
I'm Still Here
Here is Gone
and many others. Not having heard of the Goo Goo Dolls often signifies being musically deprived. Not liking the Goo Goo Dolls is a common side effect of bad music taste. Someone who enjoys listening to the Goo Goo Dolls often boasts good taste. Someone who is obsessed with the Goo Goo Dolls is a rabid fan-girl/boy; running away and screaming in terror is advised.
Hey, man, did you hear about the Goo Goo Dolls hater? He was cutting their music down and got hot coffee splashed in his face by a fangirl!