deadass

Etymology
From. Apparently originating in New York and popularized around the late 1990s–2000s.

Adjective

 * 1)  Of a place: having very little activity; dead.
 * 2)  Genuine, real.
 * 3)  Dead serious.
 * 1)  Genuine, real.
 * 2)  Dead serious.
 * 1)  Dead serious.
 * 1)  Dead serious.
 * 1)  Dead serious.
 * 1)  Dead serious.

Adverb

 * 1)  Directly, dead on.
 * 2)  Really, seriously, actually.
 * 1)  Really, seriously, actually.
 * 1)  Really, seriously, actually.
 * 1)  Really, seriously, actually.

Noun

 * 1)  A lazy or unenergetic person.