i'm gonna headbutt ya - a kid who thinks headbutting is a sport yells this when he's

a kid who thinks headbutting is a sport yells this when he's about to hit you with his forehead

He ran at me and said, "I'm gonna headbutt ya!" then bonked me with his head.

He came charging and said, "I'm gonna headbutt ya!" like it was a battle cry.

He turned around mid-sprint and shouted, "I'm gonna headbutt ya!" before headbutting me.