by Brocket August 30, 2006

When a female has a very heavy period and proceeds to participate in gym class, only resulting in a massive flow of menstrual blood.
"Hey, Tom, I think this chick is on her period."
"Uh oh, looks like we're about to witness a lava flow
"Uh oh, looks like we're about to witness a lava flow
by Shitcakedasshairs April 23, 2018

When you're in the shower and you're wanking hardcore, and your mom walks in and you continue to talk to her like nothing is happening.
I was wheeling Amy in the shower, and had to flow talk my mom because she wanted to know what i wanted for dinner.
by Techno Parrot November 21, 2016

Boos flow (bõõös flôw): The state in which an (animal) consumes too much of an unknown (unsafe) substance to their digestive system that leads to boos immunity, a stage that causes a dog to be so cute and humble that they no longer seem to be moving. One might say they died from their own overwhelming cuteness
My dog recently got the boos flow, unfortunately he didn't last through it. Thankfully he died looking very cute and healthy
by Ozatech July 5, 2020

Men’s hair that is full and with sexy length (open for interpretation). Also known as “Flow,” “Flow-Bucket,” “lettuce,” and “Cabbage.” Thanks to studs like Byrce Harper for “Making Hair Cool Again.” Also, very common jargon in the Lacrosse and Hockey community. Baseball seems to be stepping up their flow-sauce-status the last few years, as well. Flow Sauce looks especially sexy & distinctive when a helmet or hat is on one’s head. The Flow Sauce hangs out the back just right in a God-like fashion.
Dude, that long-pole has some gnarly “Flow Sauce.”
Yo, Wes, you witness that guy’s Flow Sauce? Unreal.
Yo, Wes, you witness that guy’s Flow Sauce? Unreal.
by Flow Sauce for Days December 6, 2017
