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sleep with (one)
euphemism To have sex with one. Are you sure you're ready to sleep with her? You've only been going out for a couple weeks. I don't plan on sleeping with anyone until I'm married.
sleep with someone
1. to share a bed with someone. Do I have to sleep with my little brother? Many little boys have to sleep with their brothers.
2. Euph. to copulate with someone. oI hear Sam's sleeping with Sally now. Whom did you say he slept with?
Be sexually intimate with, as in The playwright had made several attempts to sleep with the maid. The related phrase sleep together means "have sexual relations," as in We wondered if they were sleeping together but didn't dare to ask them. The verb sleep has been associated with sex since the 10th century. Sleep with dates from the 1300s sleep together was first recorded a century later.
1. To be with something or someone while sleeping: Small children often like to sleep with a stuffed animal.
2. To have sexual relations with someone: My doctor asked me whether I'd ever slept with anyone.