Is it normal for straight guy friends to make gay jokes with each other?

I noticed my husband does that with his friends. They'll make jokes like calling each other gay, or calling each other sweetheart over text message. My husband was going to hang out with one of them, and they made a joke like "don't forget to bring the lube". Is that normal?
Update: We're in our early to mid twenties, if that makes any difference. As are his friends.
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