名詞 buddy:

1. a close friend who accompanies his buddies in their activities
   同義詞：brother, chum, crony, pal, sidekick

1. A pal; a buddy.
   好友; 伙伴
2. A partner, especially one of a pair or team associated under the buddy system.
   伙伴合作者，在指在水底雙人偵察制中在一組或一隊(duì)中合作的人

bud.dy

n.（名詞）
【復(fù)數(shù)】 bud.dies
A good friend; a comrade.
密友；同志
A partner, especially one of a pair or team associated under the buddy system.
伙伴：合作者，在指在水底雙人偵察制中在一組或一隊(duì)中合作的人
Friend or comrade; chum. Used as a form of familiar address, especially for a man or boy:
兄弟：朋友或同志；兄弟。用作一種熟悉的稱呼，尤其是對(duì)男人或男孩：
例句：
Watch it, buddy.
兄弟，當(dāng)心

v.intr.（不及物動(dòng)詞）
bud.died,bud.dy.ing,bud.dies
To associate as a buddy or buddies:
如伙伴般交往，合作：
例句：
buddied around with the older guys.
象伙伴似的同老人們交往

<常用詞組>buddy up
To ingratiate oneself, as by presuming friendship:
逢迎：討好某人如通過利用友誼：
例句：
buddied up to the coach in hopes of making the team.
為了組隊(duì)而討好教練

來(lái)源：
Probably alteration of brother
可能為 brother的變化