Bowser 

1) A mario video game villian.

2) A kid in serious need of a shaving, who needs to put down the flannel and stop wearing pajama pants.

Bowser, either you shave off that dirtstache or I'll wax it off. I mean it.

Bowser by twat. December 13, 2008

Bowser 

A term originating in Riverdale, USA to negatively describe someone or something that is uninteresting, annoying or generally unappealing.

"Can you believe Reggie hooked up with Midge again?"
"Ugh, what does she see in him? He is SO bowser."

Bowser by Archie Andrews December 12, 2007

Bowser 

A large fat bald man that drives a small fast car as popularized in the Super Mario Kart gaming series.

Hey Baz, Thats a very nice new mini cooper you have there.

Isnt it a bit small for your fat ass though Bowser ?

Bowser by Mallev January 25, 2013

Bowser 

A turtle with spikes on its back from the MARIO franchise he is a very evil turtle as he likes grabbing people and dipping them in lava so their legs can fall off.

OH NO BOWSER HAS GOT ME! WAIT A MINUTE I HAVE NO LEGS I HAVE NO LEGS HE BURNED THEM OF AND THEN ATE ME! (Noises....) MARIO TO THE RESCUE (Mario dies)

Bowser by Mr.Alpha1 January 12, 2017

Bowser 

Great, mighty king of guys who talk to posters.

"Lord Bowser, remember your blood pressure!"

Bowser by OddHappenings December 5, 2019

Bowser 

People that look like their dogs.

Hey, that guy is a bowser

Bowser by Wrath is gay August 5, 2020

Bowser 

Stevens favorite pocketpussy

Steven: “I’m kinda bored I think imma use bowser”

Bowser by LøngSchlôngDönkeyKōng November 19, 2020