goofball 或 goof ball
n.（名词）A foolish, incompetent, or stupid person.傻瓜，白痴，蠢人A barbiturate or tranquilizer in the form of a pill, especially when taken for nonmedical purposes.镇静剂药丸：巴比土酸盐催眠药片，特指用于非医疗目的adj.（形容词）Silly or outlandish:愚蠢的；笨拙的：例句：.Underneath his goofball braggadocio lies a kind of purity.(David Ansen).在他笨拙的自夸里蕴含着一丝纯洁.(戴维·安森)
