haver [ˈheɪvə]
vb (intr) Brit
1. to dither
2. Scot and northern English dialect to talk nonsense; babble
n
(usually plural) Scot nonsense
[of unknown origin]
“And if I haver yeah I know I’m gonna be/
I’m gonna be the man who’s havering to you.”
Havering to You
Havering to You | Having Two Legs
Kind of their version of "sweet nothings", I suppose?
If you ever get the chance to see those guys in concert, do it! They put on a great show.