boo-boo

n. 大错, 疏忽

boo-boo 也作 boo.boo

n.（名词）
【复数】 boo-.boos 【非正式用语】
A stupid mistake; a blunder:
大错：愚蠢的错误；大过失：
例句：
.the petty talking points, peripheral issues, tactical boo-boos, and small-bore scandals that regularly intrude on campaigns.(New Republic)
.那些经常在竞选中冒出来的琐碎谈话要点、无关紧要的文章、策略上愚蠢错误以及无碍大局的谣言.(新共和国)

A slight physical injury, such as a scratch.
青肿：轻度的肉体伤害，如擦伤

来源：
Perhaps alteration of boohoo [to weep noisily]
可能为 boohoo的变化 [大声地哭泣]