以前看漫画说“已经不是樱桃了”，为什么樱桃代表的是这个意思？

倒过来像鸡鸡？

樱桃 Cherry
俚语：新手，生手，缺乏经验者：处男处女都能用

cherry是俚语里处的意思

原来如此

还是老哥见多识广啊

那荔枝是不是就是老油条

The first references to "cherry" are found in the 16th century when the word may have referred to the dark pubic hair of a woman. The more modern version of the phrase became popular in the 19th century, however, when a woman was considered "ripe for plucking" if she was a virgin (and her "cherry" was intact).

这里还有其他说法的讨论：
https://www.quora.com/Where-did-the-phrase-to-break-your-cherry-originate-from