It might not be exactly about suicide, but it definitely can allude to that.
The theme of the song is to get away from your problems and what you don't like, basically to escape. So suicide is a form of escape (jumping off something). Running away seems to be what they talk about (jumping the fence, escape), though. Either way, it's a wonderful song to listen to when you feel like jumping yourself.
It might not be exactly about suicide, but it definitely can allude to that.
The theme of the song is to get away from your problems and what you don't like, basically to escape. So suicide is a form of escape (jumping off something). Running away seems to be what they talk about (jumping the fence, escape), though. Either way, it's a wonderful song to listen to when you feel like jumping yourself.