18-1 

A feat achieve by the San Francisco 49ers, Chiacgo Bears, and New England Patriots.

The San Francisco 49ers went 18-1 and won the Super bowl.

The Chicago Bears went 18-1 and won the Super bowl.

The New England Patriots went 18-1 and lost the Super bowl. Sucka!

18-1 by Eagles 2011 SB Champs December 17, 2010

18-1 

1. The biggest upset in football history (used by patriots fans)

2. The greatest thing to happen to the planet since boobs. (used by everyone else)

1. I can't believe the patriots only got 18-1. That's bullshit!

2. WOO-HOO!!! 18-1, SUCK ON THAT, BRADY!!!

18-1 by James Tinman February 4, 2008

18-1 

To have everything going in your favor until the last moment. Derived from the 2007-2008 season New England Patriots whose quest for a perfect season was derailed by the New York Giants in the Superbowl XLII.

I had an 18-1 bowling game last night, I was making all those strikes until I made a gutterball at the final round.

18-1 by Idiot-Finder2 January 12, 2009

18-1 

18-1 is probably one of the most embarrassing records to have in football history. It may be thought that winning 18 games and only losing 1 is a good thing, but when that last game is at the super bowl to a wild card team, it is nothing to brag about.

The patriots went into the super bowl with an 18-0 record. After getting spanked by the giants they went 18-1 and went from "unbeatable" and "perfection" to "embarrassed".

18-1 by bLiTcH February 4, 2008

18-1 

1. The state of being excessively arrogant or cocky.

2. The act of choking, as in an unexpected loss.

3. The process of karma catching up with a cheater or team of cheaters.

1. Bob was so too 18-1 going into that Tennis match and lost because of it.

2. Timmy was up by 5 points but managed to 18-1 the game away at the end.

3. 18-1 will eventually happen to Barry Bonds.

18-1 by FannyFondler January 12, 2009

18-1 

1. What the Patriots ended up after they got beat in the Super Bowl

2. The Trademark of the NY Post after the Patriots bought 19-0

Well there goes the Patriots' perfect season. Now their 18-1.

18-1 by KS_You_Know February 4, 2008

18-1 

not perfect, usually due to inferiority to the New York Football Giants

1) "The New England Patriots finished the 2007 NFL season 18-1."

2) "damn! that bitch is 18-1!"

18-1 by muthafuckineli February 4, 2008