Cowabunga it is 

An expression used to accept a challenge, wage war or defend one's honor by unspecified but extreme/chaotic measures.
In all instances it is a simple way of indicating that come what may, your decision is set in stone.

Her: If you don't pause your game right now, we're breaking up.
Me: Cowabunga it is.

Cowabunga it is by The Doctopus November 27, 2019

Cowabunga it is 

An expression used to indicate anger, suprise, or frustration, and very often associated with a macro of Michaelangelo of the Teenage Mutant Ninja Turtles with a wide mouthed stare on his face.

News: So the goverment is proposing a ban on erogenous artwork depicting underage children.
Weebs: Cowabunga it is.

Cowabunga it is by TheIrateIrishman October 8, 2019

Cowabunga It is 

When you DO accept all out war. Free Mason’s vs. the Illuminati. Let’s see what MATH AND PROGRAMMING CAN DO TO THE PERVERTED VERSION OF WHAT THE FM’s stood for. Let’s go Drizzy, Wayne, Crips, Bloods, US, and every Country or Kingdom that wants some. Swear I’ll take you with me.

Dwayne Carter the 3rd didn’t know his Turtle 🐢 done shell shocked his ass with that coding. So threats rained down. The CEO of Ethereal said Cowabunga It Is and despite threats from bohemian grove, PLW slaughtered the Rap industry one by one.

Cowabunga It is by Wayne vs Drake Beef on YouTube May 5, 2023