1. headbonk - Noun
2. headbonk - Verb
headbonk (plural headbonks)
An affectionate bump with the head, typically by an animal; headbump
headbonk (third-person singular simple present headbonks, present participle headbonking, simple past and past participle headbonked)
(transitive, typically of an animal) To affectionately bump with the head.