yukky 

A total rejection by one or more of the 5 sences (negative appeal) i.e., disqusting, undesirable, ugly, smelly, toxic, poison, slimy, nasty, etc.

Old leftovers can be really yukky. eww.

yukky by Guido1 February 2, 2009

getting yucky

To get drunk out of your mind at the club or a bar

"When I get home from getting yucky with the boys at the bars I get online and just want to troll everyone." - Bonks (Bodybuilding.com - Misc.)

getting yucky by YuckyBoy July 3, 2011

Yukki Effect 

When yukki is in charge of a group and it doesn't launch for several years and then moves on to a different group and repeats the cycle.

"yo I just recruited yukki to help lead my new group"
"dude... big mistake.. the yukki effect will take place if you don't fire him"

"yes I finally became hc in one of yukkis groups I can't wait for it to launch."
"lol it won't"
"why?"
"the yukki effect"

Yukki Effect by Decrupt June 25, 2020

yucky 

drunk and crazy

I was out getting yucky with the boys

yucky by Lunatic_foreveralone July 4, 2011

yucky-doo! 

A childlike exclamation in response to something yucky.

My two-year-old looked up at the television screen and upon seeing the bloated orange face and cotton candy yellow hair, squealed “yucky-doo!”

yucky-doo! by Dr Bunnygirl June 10, 2020

Yukkuri shiteitte ne 

A meme involving giant, disfigured heads resembling those of Touhou characters. It originated on 2ch in early 2008 when an Anon tried to make a Shift_JIS portrait of Reimu and Marisa and failed horribly. Another Anon thought the failed attempt was humorous and drew the infamous original picture (shown below right). Ever since that fateful day, yukkuri heads have dominated parts of NicoNico and made cameos in numerous other pieces of Touhou fanart. Their catchphrase "Yukkuri shiteitte ne!" literally means "Do it slowly!", but has been more loosely translated as "Take it easy!" by the English-speaking Touhou community. This remains the basis for many of the jokes centered on yukkuris.

Reimu: This stalking deformed head of me is quite annoying.
Yukkuri Reimu: Yukkuri shiteitte ne!

Yukkuri shiteitte ne by That one guy over there in the August 17, 2009

Yucky Harms

A phrase used to negatively describe the perceived nutritionally horrid breakfast cereal "Lucky Charms".

Fred and Martha are in the grocery store's cereal isle...

Fred: Look at all the overweight and unhealthy children nowadays.

Martha: I know Fred! And I think I've found one of the culprits! (points to a box of Lucky Charms)

Fred: It must be from those kids all eating Yucky Harms! The nutritionally horrid breakfast cereal with hideous surprises!

Yucky Harms by YuckyUs May 23, 2011