"crazy," 1846, from earlier be nutts upon "be very fond of" (1785), which is possibly from nuts (plural noun) "any source of pleasure" (1610s), from nut (q.v.). Sense influenced probably by metaphoric application of nut to "head" (1846, as in to be off one's nut "be insane," 1860). Nuts as a derisive retort is attested from 1931.
Connection with the slang "testicle" sense has tended to nudge it toward taboo. "On the N.B.C. network, it is forbidden to call any character a nut; you have to call him a screwball." ["New Yorker," Dec. 23, 1950] "Please eliminate the expression 'nuts to you' from Egbert's speech." [Request from the Hays Office regarding the script of "The Bank Dick," 1940] This desire for avoidance accounts for the euphemism nerts (c. 1925).
实用例句
1. Pack the fruits and nuts into the jars and cover with brandy.
把水果和坚果放进罐子里，用白兰地酒浸泡。
来自柯林斯例句
2. A number of the French players went nuts, completely out of control.
有几个法国运动员简直是疯了，完全失去了控制。
来自柯林斯例句
3. My father would go nuts if he saw bruises on me.
如果我爸爸看到我脸上有伤痕，他会气疯的。
来自柯林斯例句
4. He may break out in a rash when he eats these nuts.
他吃了这些坚果可能会长皮疹。
来自柯林斯例句
5. He's more concerned about the nuts and bolts of location work.