RULE #1 

Rule #1 within a marching band:
No sex on the bus.

If you break rule #1, you're breaking rule #2 (don't suck.)

RULE #1 by Aralyn January 13, 2008

RULE #1 

Boys are dumb. Used to indicate the gap in emotional intuition between men and women.

I agree that he should have known better than to ask your best friend to the prom instead of you, but don't forget Rule #1.

RULE #1 by ACD September 19, 2006

rule #1 

i am always right no matter what

person #1: Dude 7-5=42 is wrong.

person #2: rule #1

rule #1 by rule_number1 May 16, 2009

Rule #1 

Don't Fuck Around! Heed.

Wherever you are, do not fuck around that is Rule #1.

Rule #1 by TapeGuy May 27, 2008

RULE #1 

Discovered in the eternal search for wisdom by the relentless Joshiro007, it the one thing you must always remember when involved in a serious relationship...RULE#1:

Hurt me once, shame on you.
Hurt me twice, shame on ME.

RULE #1 by Joshiro007 February 23, 2003

RULE #1 

thats tight.
also, see "Scarface"

frank

RULE #1 by YoungCali August 26, 2003

Rule #1 

Is that you gotta have fun
But baby when you're done, you gotta be the first to run

Girl: She broke Rule #1 of how to be a heart breaker, she stayed longer and he broke her heart
Girl 2: Wow that's tragic

Rule #1 by Snailutopia September 1, 2017