A headbutt is a strike with the head, typically involving the use of robust parts of the cranium as the area of impact. Effective headbutting involves striking a sensitive area of an opponent using the forehead, such as the nose of an opponent. It can be considered a very effective but risky maneuver as a misplaced strike can cause greater injury to the person delivering the headbutt than to the person receiving it.
Source: Headbutt – wikipedia
WAL Atlantic City: Paul Talbott vs. Ron Klemba
WAL Atlantic City: Shea Dickie vs. Paul Talbott