forcefully; violently; emphatic prefix
Emphatic prefix attached to verbs, adding a sense of force, violence, or intensity. Similar to ぶっ, but ぶち is used before certain sounds. Colloquial and expressive.
彼は怒ってドアをぶち壊した。
He got angry and smashed the door.
その話を聞いて、ぶちのめしてやりたいと思った。
Hearing that story, I felt like beating him up.
striking the face (sumo)
beat up; knock down; beat to a pulp · devastate; crush; overwhelm; defeat resoundingly
ram head-first in the initial charge (sumo) · punch hard; hit hard
fire; shoot
Derived from the verb 打つ (うつ, 'to hit'), with a sound change to ぶち. The exact historical development is uncertain, but it functions as an intensifying prefix in modern colloquial Japanese.