1) A contraction of two words ("smack" and "down") popularized by WWE wrestler-turned-actor The Rock that refers to the inflicting of a beatdown of epic proportions upon "jabroni"s' "candyasses". Sometimes used in a bastardized form of Elizabethan English.

2) The name of the Thursday night WWE show on UPN created by Vince McMahon originally as a show of respect for his champion, The Rock, who commonly used the term. Now it is merely a place where stars' careers go to die.

Smackdown is The Rock show or was until The Rock left to become an Actor.

The WWE show, shown on Thursday nights, which carries the substandard WWE wrestlers. Is the competition for WWE RAW, which is the authority of WWE TV shows. Their titles are the WWE Championship, WWE Tag Team Championships, and the Cruiserweight Championship.

You say it when you've bested someone at anything. Like if you win a card game, beat someone at a video game, or a race, etc.

(-- Actually spelled WWE Smackdown! The ! is VERY Important!)

SteelPhenoix's Definition & Example had this down pact. But I'll add on.

The WWe show made up by Vince McMahon where wrestlers in the WWe go to job to Bradshaw every tuesday night.

Smackdown's only Popular and Good superstars are Kurt Angle and The Undertaker.

Smackdown's Popular, yet sucky stars are John Cena, Bradshaw aka John "Bradshaw" Layfield aka JBL, Rey Mysterio (he's a frikkin' cruiserweight!) , and Eddie Guerrero. (And HE was actually once WWE Champion!)

The sic shit on UPN that no onther show can fuck with not even weak ass over dramatic raw.

When you smack, and then someone falls down.