Gunbuster 

A 1989 OVA about girls with big boobs who pilot a 200 meter tall super robot to save the human race from evil Space Monsters (Uchu Kaiju) that want to "purify" the universe by wiping out humanity. The series makes use of realistic physics when it comes to the use of relativistic speeds, and features what is probably the second most destructive giant robot in an anime (after the Ideon).

Gunbuster is one of the awesomest anime ever!

Gunbuster by Warui Otoko July 22, 2010

Gunster 

Someone seriously into guns and shooting, probably a member of a shooting. Someone who shoots on a regular basis.

That gunster is always at the range.

Gunster by Gunster UK January 28, 2017

gangbusters

Gang Busters was a famous radio program that was first heard in 1936 and aired until 1957. The sound effects of police sirens, tommyguns, and screeching tires that opened the show were dramatic and exciting -- this inspired the expression 'coming on like gangbusters'.
Usage has opened up to describe things that are not just exciting, but successful, intense, and many other adjectives, and many drop the 'coming on like' prefix. I think we should be more careful about how we use it, and keep it true to its origin -- something that starts with much excitement and drama is 'coming on like gangbusters'.

The rainstorm late last night came on like gangbusters!

gangbusters by M. Warrener January 17, 2008

Gogbuster 

a huge f-boy, that only uses you for nudes or sex

Bella: hey wanna hangout

Mitt: wanna come to my house...my dad said i can lock the door

bella: EW NEVER MIND YOURE SUCH A GOGBUSTER UGH

Gogbuster by sistershook January 4, 2019

gangbusters

Also used in conjunction with "like", to create "like gangbusters". This phrase can be used to describe something energetic or intense.

"Its raining like gangbusters"
"Check out my gangbusters new CD"

gangbusters by riloman April 15, 2004

BunBuster 

One who likes to perform anal intercourse.

Plural: BunBusters

Also the name of a short-lived series of Porn Movies by "The Dark Brothers".

White Bunbusters (1985)
Black Bunbusters (1985)

My girl Pam sure likes it up the ass. Just call me 'The Bunbuster'.

Lyricslyrics from the porn movie follow:

"Baby, I was just sittin' here, lookin' at the stars, and thinkin' about that time we tried anal sex...
And it didn't work out...
Well, Baby, I want you to listen good, 'cause ya know what I'm gonna do? I'm gonna call the White Bun Busters...
And they're gonna bust yer fuckin' buns!!!"

BunBuster by ButtFuzz August 2, 2006

Gutbuster 

A Gutbuster is a type of food served by chipshops all around the world. A Gutbuster describes a cheeseburger in a bun, covered in batter and placed into the fryer.

Customer: "Can i have a Gutbuster supper?"

Gutbuster by Liam Thom February 21, 2009