"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).
例文
1. Pack the fruits and nuts into the jars and cover with brandy.
フルーツとナッツを缶に入れ、ブランデー酒に浸す。
2.A number of the French players went nuts ，completely out of control.
フランス人アスリートが何人かいて狂っていて、完全にコントロールを失っています。
3.My father would go nuts if he saw bruises on me.
もし私の父が私の顔に傷があるのを見たら、彼は気が狂ってしまいます。
4.He may break out in a rash when he eats these nuts .
これらのナッツを食べると皮疹ができる可能性があります。
5.He 's more concerned about the nuts and bolts of location work.