When U Love Somebody Lyrics

Lyric discussion by McBearclaw 

Cover art for When U Love Somebody lyrics by Fruit Bats

That's what I was thinking - normally, "biting your tongue" means not saying something you want to say. But when you love somebody, you can't hold back, so "biting your tongue" can only have its literal meaning - and you end up with a bloody tongue.

But I disagree. I think what they're saying is that you are too nervous to express your feelings so you bite your tongue (figuritivluy). And then they create a metaphore by saying when you do bite your tongue, all you get is a mouthful of blood meaning if you hold back your feelings, nothing good will come from it.