1. To be highly inebriated, drunk, stoned, blazed, etc.
2. To be Intoxicated with alcohol to the point of impaired judgment and lack of physical and mental control.
3. Very drunk, sloshed, hammered, tossed.
4. To be under the influence of alcohol or some sort of drunk.
5. So drunk or high that you can no longer have an intelligible conversation with anyone.

Synonyms -
Blitzed, bombed, boozed up, butt faced, buzzed, dead drunk, drunk as a skunk, dead to the world, drunken, feeling good, feeling no pain, flushed, flying, fried, gone, hammered, half in the bag, high, hooched up, inebriated, jacked, juiced, liquored up, lit, loaded, pissed, poluted, retarded, sauced, seeing double, shit faced, sloshed, sofa king drunk, stoned, tanked, three sheets to the wind, tipsy, totaled, twisted, under the influence, under the table, wasted, woozy, zonked

Examples –
Dude, last night I was so faded.

What the hell happened last night, I don’t remember anything. I must have been faded, because I don’t remember getting this tattoo!

John: So what should we do tonight?
Tim: Let’s go to the bar, watch the game and drink a few pitchers of beer.
John: Sounds good, then we can come back here and continue to get faded!

Dude, 6 beers and that joint and I am FADED!!!

I drank a 40 of Mickeys last night and and smoked that bowl and was sooo faded!