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2.
OFTEN USED AS: Nice'd up
the up is key in the sentance

the act of getting dressed up.. or getting fancy.. showering up and getting ready for a date.
girl: "hey, you wanna come over around 7 tonight??"
me: "yea, ill hope in the shower and get myself all nice'd up in no time!"
girl: "okies! <3 you!!"
by marky-k May 01, 2005
 
1.
To be made a fool of; To make a fool of; To confound or prove wrong; embarrassing someone: Being embarrassed. Related to 'Owned', 'Pwned', '0wned', '0w3nd'.
"Dude Brah, I just totally Niced you with that sniper, How does it feel to suck?!"

"Dang I was out too late last night, and when I got home my mom Niced me"

"Yo Ademo, Wanna go grab a bucket and then maybe I'll nice you in some Halo?"
by TizzMizzle March 09, 2005
 
3.
A term used to describe something that is a cross between being nice and cool.
Sam says:
"I just found 50 cents!"
John says:
"Niced."
by souper July 30, 2006
 
4.
1. adj. Looking very bling bling or "gangsta".
2. adj. Something only in the process of when it is happening, that is very pleasureful or appealing. This may only be said by a 3rd or viewing party.
1. Steve looked niced as he strolled down the lane.
2. (Looking at Amanda and Tiffiny make out) Joey says,"niced"
by Logan Smith February 02, 2004