I think the best Green Day reference that I see daily is the carving of the St. Jimmy heart and cross that I made on the bathroom stall in my high school last year
I used to upload my gifs to Photobucket, but then they upgraded it to a beta version and all the gifs I tried to upload got resized.
Now I'm using imgur. It's much better than Photobucket! And you can add text by clicking the "type" button that says "T" on your tool bar. I can explain it further in a PM if you like.
Actually we should have between us Green Day fans the expression of someone 'being green' to say he's mainly rebel and all like Green Day would save some time instead of explaining it. Beliebers have swag, so we need something too, we can't be less
And so I don't spam, I always loved this one: