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A "Kebert" is a funny one that often times pulls shanagans without thought and often times doesn't realize the horrible outcome that could occur. Being a "kebert" isn't always a bad thing, often times the "Kebert" can be hilarious and often times be one of enjoyment.
"Don't be such a kebert and put down my phone"

"Kebert, why are you here? Isn't this your 4th DUI"

"Kebert Don't do it!!"

"I love that girl Kebert, she makes me laugh"
by Pvans November 07, 2007