Ovary Build-Up. The female equivalent of blue balls. When one is left sexually frustrated because sex has been promised or anticipated but not full filled.
« Simon decided to hang out with his friends instead of fucking me. I’ve been OBU’d »

« My mum called me as I was about to cum. She OBU’d me »
by dankonso May 2, 2020
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are you dating that guy yet?

No, he is just my obu!
by sally south January 11, 2010
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When someone says something stupid that’s actually obvious
Did the girl break her ankles when she jumped off the bridge, obus fuckin slee
by Lil priiit October 25, 2018
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When someone says something stupid that’s actually obvious
Did the girl break her ankles when she jumped of the bridge, obus fuckin slee
by Lil priiit October 25, 2018
Get the obus fuckin slee mug.
comes from the word, Obviously.

it means, it's obvious.
"That fag still hasn't come out of the closet even when everyone knows his sexual preference!"

"I KNOW! OBUS! He's going to get a beating from the sibs when they find out!"
by rachel tara September 14, 2007
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