動(dòng)詞 blab:

1. divulge confidential information or secrets
   同義詞：spill the beans, let the cat out of the bag, talk, tattle, peach, babble, sing, babble out, blab out
2. speak (about unimportant matters) rapidly and incessantly
   同義詞：chatter, piffle, palaver, prate, tittle-tattle, twaddle, clack, maunder, prattle, gibber, tattle, blabber, gabble

1. He blabbed my confidences to every one.
   他把我告訴他的知心話告訴了每個(gè)人。
2. She's OK, but she always likes to blab about how successful her husband is.
   她還可以啦，不過(guò)她老愛(ài)提她老公有多成功。

blab

v.（動(dòng)詞）
blabbed,blab.bing,blabs
v.tr.（及物動(dòng)詞）
To reveal (secret matters) especially through indiscreet or unreserved talk.
泄露（秘密）：尤指從無(wú)意或無(wú)保留的談話中泄露（秘密的事情）
v.intr.（不及物動(dòng)詞）
To reveal secret matters.
泄露秘密
To chatter thoughtlessly or indiscreetly.See Synonyms at gossip
瞎說(shuō)或亂談參見(jiàn) gossip
n.（名詞）
An incessant or indiscreet talker.
瞎說(shuō)或亂談的人
Lengthy chatter.
喋喋不休

來(lái)源：
Middle English blabben [to talk foolishly]
中古英語(yǔ) blabben [愚蠢地談話]
back-formation from blaberen
源自 blaberen的逆構(gòu)詞

【引伸】
blab.by
adj.（形容詞）