kevtarded 

when you wake up and have no fucking idea what happened the previous night.

David: Why is there piss and throw up all over your room?

Kevin: I dont know man... I woke up so kevtarded this morning.

kevtarded by Diggest Bicker December 9, 2010

kratarded 

to act dumb or describe one acting dumb. Acting crazy/retarded.

Man that was kratarded doing that.

kratarded by Kratarded Man January 9, 2017

keytarded 

A description of how wasted someone gets at any event involving the 80's while referencing an instrument that was heavily involved in music production during that time.

Oh man...I got super keytarded last night when we saw that cover band Bon Journey at that stripmall club.

keytarded by superrubber March 30, 2010

kretarded 

the description of any idea one finds especially stupid. it helps if the idea in question either is conveyed through alliteration of or involves the letter 'k'

Person 1: Look at the 'K' on my glasses! It stands for Kool!
Person 2: That's kretarded.

kretarded by MrrrrH December 15, 2009

Katarded 

When someone has consumed to much Ketamine, gone into a kahole which eventually leads to becoming totally Kabaty}

Jims katarded man he can't even stand up

Katarded by Mr Knesswordsworth December 7, 2007

Kotarded

To be a mf valid person who does some valid ass things. Valid is equivalent to the sense of what Kotarded is.

That dude hella kotarded.

or
They are not very kotarded.

Kotarded by Panda Noodlez November 1, 2022

Kevtardalonious 

A person of less than superior intellect, one who is foolish and unwise

You sir are a kevtardalonious.

Kevtardalonious by That guy again again March 25, 2010