Bool 

Period blood from a human female experiencing her menstrual cycle; usually of the dried (unfresh) variety. Generally has a brownish coloration.

"Awwww nigga you got bool all ova ya pant leg, what kinda nasty ass chick you been bangin'?"

Bool by Uncle Tom Foolery October 3, 2008

Bool 

To smoke weed or hit a THC pen. Originated in Newton, MA.

Wanna get high? Let’s go bool outside!

Bool by Iggajdouebskdueb August 31, 2019

Bool 

Fuck around and talk to random strangers, done when one is bored

Person 1: Bro, what should we do today, I’m bored.
Person 2: Let’s just go bool at IN N OUT.

Bool by ChaseET May 4, 2020

Bool 

To go hard, to go ham, description of how hard one is going, a filler word, something to say when a conversation starts lagging (in combination with the let’s rock sign)

We booled the hell out of that mountain bike path!

Sorry mom I can watch Downtown Abby tonight, my bois picked up a sixer and we are going to get our bool on!

Bool by KingPinnn June 8, 2020

bool 

IT means bool it means anything and means you cool are gay af

AYE that nigga is bool af
dint be a bool

bool by bolia carsnia March 2, 2018

Bool 

To have sexual intercourse

Jack said he's going to beths to bool hopefully he gets lucky

Bool by Barresdale bard July 26, 2017

bool 

To dominate one’s enemy, specifically in a sporting event.

Damn bro, we booled all over that volleyball team.

bool by Chumsnuggie June 7, 2018