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1.
A smile that is huge and contagious. Usually on a super hot, funny, compassionate, sweet, lifeguard-type guy (MAN). He is a great athlete.

As Broad as Dennis Quaid's smile.
Oh my God!! Did you see that Quaid smile.
by rockhunter July 01, 2009
 
2.
Another term for weed.
1. You got any quaid left? I'm completely dry.

2. Yo I have some quaid, you wanna smoke?
by _Crow_ March 06, 2014
 
3.
A person of limited intelligence in a position of authority.
God I hate my boss, he is such a quaid.
by silas.pc September 18, 2005
 
4.
A mix of every STD known to man.
Quade got Quaids from going to prison.
by Johnny11213 May 12, 2011
 
5.
people that like tomb raider, rock climbing, tom Clancy stuff, paint balling, shants, taking matters into their own hands

origins: San Anselmo, CA, THE CHAMBER
wow that kid is quaid
by Larry July 29, 2004
 
6.
A descriptor that describes a person, thing, or experience that is mediocre at best.

Quaid-plus and quaid-minus can also be used, though it is frowned upon. They act like letter grades, meaning the described is slightly above or below mediocre.

The term is derived from the actor, Dennis Quaid.
-Hey dude, how was the movie?
-Eh, it was pretty quaid.
-Damn, I'm sorry...
by ProgRockDrummer August 08, 2011
 
7.
To be unnecessarily proud about something. Usually accompanied by a big stupid smile, sometimes called an 'extend'a smile' often seen on Dennis Quaid's face during ghey movies.
Chalm: I just killed you at poker.
Damo: Don't be so quaid asshole.
by Van Def May 19, 2005