Semper Fi 

The genre of Science Fiction characterized by "futuristic" or "space" Marines fighting badly rendered CGI monsters, mostly giant bugs.

A: Whats on SyFy tonight?

B: Just more Semper Fi crap, Aliens, then Starship Troopers 7.

Semper Fi by Coxcomb11 January 5, 2010

Semper Fi 

Chinese for "I have a limp dick."

I just boned my DI. He's hot. Now I have a Semper Fi

Semper Fi by Thebobs21 December 12, 2012

Semper Fi 

Motto of the US Marines. It means "Kill them all and let God sort them out."

Just semper fi these niggers. We're late for the Klan meeting.

Semper Fi by MarinesGangRapedMe November 29, 2020

semper fi 

............ bitch

used when you get tired of answering a question

"semper fi bitch"

use it!

semper fi by anonymous February 27, 2005

semper fi motherfucker!

Something from the movie Doom that Cooli says a lot.

Cooli: Semper Fi Motherfucker! *punches in face*

semper fi motherfucker! by warriors37 February 12, 2007

semper fi diddy 

"I agree"

A: Shaq City is the place to rock.
B: Semper fi diddy.

semper fi diddy by Anonymous September 18, 2003

Semper Fido

mutation from the Latin meaning "always a dog", always being a dog, always base and self-gratifying, always begging handout, freebees, sex, gratuities. Always "dogging it".

When Zeb related to ladies and friends in his base self-serving way he was "Semper Fido" - always doglike.

Semper Fido by jim christ December 28, 2007