"period of unrestrained activity," 1887, American English, perhaps via intermediate sense of "as much drink as a man can hold" (1670s), from earlier meaning "load of hay or wood" (1590s), of unknown origin. Used in U.S. colloquial speech from 1834 to mean "a quantity, a lot."
jag (n.2)
"slash or rend in a garment," c. 1400, of unknown origin.
实用例句
1. They are on a jag, buying everything that they like in the store.
他们尽情放纵自己, 在商店里喜欢什么买什么.
来自《简明英汉词典》
2. A neighbor of mine went on an eating jag and gained twenty pounds in two weeks.
我的一个邻居大吃大喝,在两星期内体重增加了二十磅.
来自辞典例句
3. Tip money for the guy who washes my Jag.
我会给那些替我洗衣服的人小费的.
来自电影对白
4. I wasn't in the mood to go on a real crying jag.