I just looked for the lyrics for "Stand by me" for a friend who needs them for a cover her band is doing. I found it here:
http://www.lyricsdomain.com/16/pennywise/stand_by_me.html

But when reading them I just noticed something funny. I don't think the original song says "Just as long as you f_ing stand by me"!! (Seventh line from the bottom.)

I don't think it was in the original when I had it. I think they put a couple of extra bits in like the "thumble and fall" to avoid copyright issues.

Yeah that's the Pennywise cover, really good punk band but they did change a couple of the words on that song, as you noticed

Pete