noun
gung-ho; overly enthusiastic; zealous
A loanword from English, used in Japanese to describe someone who is extremely eager or zealous, often in a work or group context. Can carry a slightly negative nuance of being too enthusiastic.
彼は新しいプロジェクトにガンホーだ。
He is gung-ho about the new project.
ガンホーな態度が時には周りを疲れさせることもある。
A gung-ho attitude can sometimes wear out those around you.