Someone who only has the ability to remain information for about as long as they can retain their own water. They regularly ask you things that they've only asked you very recently.
Steve: "So what did Nick want you for?"

Johnny: "He wanted to know how to set up the printer"

Steve: "Again? Didn't you show him the last two days already?"

Johnny: "Yeah. The man has a serious bladder brain, he just can't hold on to information"
by Urban Englander March 2, 2011
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the cancer of the bladder which is from the mutation of cells. Carcinoma, AKA transitional cell carcinoma, is the most common form of bladder cancer and starts in the cells in the bladder wall’s layer. this results in many deaths and has recently been diagnosed to a close friend of mine. get well soon Rozza
man "Rozza has Bladder Cancer!"
by Sammy Falz June 8, 2017
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When two gay men simultaneously urinate into each others urethras
Micheal:"Seth, did you hear what Carson and Nic did last night?"
Seth:"No, what?"
Micheal:"They did a bladder exchange!!"
by Connor&Seth November 15, 2017
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The feeling of coldness that you sometimes get from really needing to pee.
"I woke up at midnight with the bladder chills. It took me 10 minutes to convince myself to get out of bed and go to the bathroom."
by ParkourFactor April 2, 2016
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