[dead serious] 

To be completely serious; not joking.

Suzie: Matthew likes you.
Sarah: Stop joking around, that's not funny.
Suzie: I'm dead serious.

[dead serious] by BellaW December 26, 2008

Dead Serious 

To be completely serious; not joking.

Suzie: You don't have an ass.
Sally: Stop lying.
Suzie: I'm dead serious.

Dead Serious by BellaW January 4, 2009

No Lie Dead Serious 

The ancient pact that unifies truth from brother to brother allowing the validity of a statement to be unquestioned.

PERSON 1 :"Dude, I just sharded all over myself!"

PERSON 2 : "No Lie Dead Serious?"

PERSON 1 : "Dude, No Lie Dead Serious!"

No Lie Dead Serious by Honz and Hanz March 8, 2009

lrg dead serious hoody 

The most coveted hoody in history

First exposed to the public when Kanye West rocked the sample at a Stela McCartney fashion show the hype has just kept building.

Trust me this is the closest thing to crack the streetwear industry has ever produced, and leave it to LRG to once again break new ground.

The details are sick, a glow in the dark anatomically correct skeleton printed on the back and the front, covered by the rib cage is a broken heart with subtle repeat stenciling that says rotten, just like you to the core. But nothing tops the full zip hoody, with mesh eye holes so you can rock the full skull head and still not bump into walls. And check the gold fronts skeletor has nothing on this dude!

damn that lrg dead serious hoody a scary good lookin hoodie i'm dead serious

lrg dead serious hoody by rjizzle22 May 18, 2008

dead serous

Not to be confused with "dead serious", "dead serous" is a slang word/phrase which is commonly summoned by typos.
It means the same as "dead serious" but is found more fun, and used to humiliate the writer for a short period of time after.

Word/phrase derives from serous

"I’m dead serous, Tom."

dead serous by nortisverikool June 24, 2026