ダチ

• Reading: ダチ
• Romaji: dachi
• Kanji breakdown: Shortened from 友達 (tomodachi, friend) → keeping just ダチ for a casual, rough tone
• Pronunciation: /da.tɕi/

Meaning

A close friend, pal, or buddy — a rough, masculine-sounding abbreviation of 友達.

ダチ is a clipped form of 友達 (tomodachi) that keeps only the last two mora. It has a distinctly rough, masculine, and street-tough flavour — you are more likely to hear it from male speakers or in media depicting delinquent or working-class characters. While it implies genuine closeness and loyalty between friends, its register is much more casual and rough than 友達.

Examples

1. 高校のダチとは今でもたまに飲みに行くよ。 I still go out drinking with my buddies from high school sometimes.
2. ダチだろ？困ったときはお互い様じゃん。 We're boys, right? When one of us is in trouble, we've got each other's backs.
3. 本当のダチは数えるくらいしかいないよな。 I can count my real homies on one hand.

Usage Guide

Context: friends, masculine speech, delinquent culture, media

Tone: rough, loyal, masculine

Do Say

• あいつは昔からのダチだから信頼してる。 (He's been my buddy since way back — I trust him.)
• ダチ思いなとこがあいつのいいとこだよ。 (The good thing about him is how much he cares about his friends.)

Don't Say

• 女性同士で「ダチ」はあまり使わない — 男性的な響きが強い (Women rarely use ダチ with each other — it sounds very masculine)

Common Mistakes

• Using ダチ in mixed or formal company — it has a rough, masculine tone that can sound out of place outside casual male friendship contexts

Origin & History

Shortened from 友達 (tomodachi, friend). The abbreviation ダチ retains only the ending and has been part of masculine/rough slang since at least the Showa era. Common in ヤンキー (delinquent) subculture and media.

Cultural Context

Era: Showa-era masculine slang, still current

Generation: All ages, predominantly male speakers

Social background: Rough/masculine register

Regional notes: Used across all of Japan. Often heard in ヤンキー culture, manga, and films about male friendship and loyalty.