A person who is batcrap crazy is certifiably nuts. The phrase has origins in the old fashioned term "bats in the belfry." Old churches had a structure at the top called a belfry, which housed the bells. Bats are extremely sensitive to sound and would never inhabit a belfry of an active church where the bell was rung frequently. Occasionally, when a church was abandoned and many years passed without the bell being rung, bats would eventually come and inhabit the belfry. So, when somebody said that an individual had "bats in the belfry" it meant that there was "nothing going on upstairs" (as in that person's brain). To be BATcrap CRAZY is to take this even a step further. A person who is batcrap crazy is so nuts that not only is their belfry full of bats, but so many bats have been there for so long that the belfry is coated in batcrap. Hence, the craziest of crazy people are BATCRAP CRAZY. ( thank/thanks kbli)
It has been reported brain eating zombies protesting in Washington DC, one was quoted as saying " we are not only starving, we are asking the FDA, to require labeling for those whom are batcrap crazy, warning "taste like batcrap", FDA defended their policy position, "we here at monsanto don't believe in labeling what we put in anyone's food"
by twz January 31, 2015
Get the batcrap crazymug. by Haha kylr November 20, 2020
Get the crazy nutsmug. by Creed962 June 14, 2024
Get the zulu crazymug. Is it a rapist? A manipulator? Do they try to give people eating disorders? ALL OF THE ABOVE!! If you like having friends STAY AWAY! if you do something the crazy crow doesn't like they will do their best to ruin your life!
by Amazing Bastard September 20, 2022
Get the Crazy Crowmug. 
Vagina, or pussy; referred to in a way when a man gets caught in a "sticky" situation with a crazy woman due to sexual desire.
by The Real Blue Wolf September 19, 2018
Get the Tunnel to Crazy Townmug. Adj. when someone is losing they shit
When somone is wildin out. You can say they are going rah rah crazy. Terms is interchangeable.
When somone is wildin out. You can say they are going rah rah crazy. Terms is interchangeable.
“Aye cuh where my money at *pulls out glock* I SAID WHERE MY MONEY AT”
Bystander: Damn homeboys goin rah rah crazy rn
Bystander: Damn homeboys goin rah rah crazy rn
by SertifyedHoodNigga January 20, 2023
Get the rah rah crazymug.