A male boyfriend/lover who could be old enough to be ones blood uncle, but isn't.
"Did you meet Scott's new boyfriend, Unkle Dan."
A word is used to describe someone who is practically family, but not. Like family, they're all up in your business. They can make your day. They really piss you off. They know when you're wearing a new outfit. They call you out when you're acting stupid. They call a lot actually. And they love you thiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiis much. Sometimes want to punch them in the teeth. Sometimes you want to give them a big bear hug. Sometimes you want to do both at the same time.
"Hey Unkle Jerk. Thanks for telling Nancy that I thought her new haircut looks like shit."
"Thanks for coming with me to that weird guy's house, Unkle. No one else would go with me."
"I think you're the best Unkle I've ever had."