chump change
少量或不起眼的钱
例句与用法：
His action are so irrational that I think he must be off his chump.
他的行为毫无理智，我认为他一定是疯了。
She does such foolish things that she must be completely off her chump.
她竟干出这样的蠢事来，一定是发了疯。
词形变化：
动词过去式: chumped | 动词过去分词: chumped | 动词现在分词: chumping | 动词第三人称单数: chumps |