grass up

短语

发音

AU

词形变化

grassed up grasses up 三单 grasses up grassing up grassing up 现在分词 grassed up 过去式 grassed up 过去分词

释义与例句

v.
  1. 1.

    To betray by informing on.

    英国 俚语

词源

From grass (“informer”) + up.

来源：wiktionary