blow, yayo, cocaine. Also Yuckmouth (a side effect of doin some blow)

something gross

Formerly used as an onomatopoetic expression to describe the sound of laughter in '60s theatrical jargon.

A decade later was used as an expression of distaste, disgust, or revulsion by people who attended comedy clubs, probably due to the disgusting nature of the jokes told in a more vulgarity-tolerant society. Can also be used in its adjective form, yucky.

see also: blech, ew, yucky, ick, icky

i. The phrase "yuck it up" was a way of mimicking laughter in '60s theatrical jargon. It was also used to describe the sound of laughing at comedy shows.

ii. A decade later, yuck became an expression of distaste or disgust, maybe due to the vulgarity of the jokes in the aforementioned comedy clubs.

Note: can also be used in adjective form, i.e., yucky

See also blech, ick, icky, ack, yech, blech, blah, bleh, yucky, hyuck & ew

Used as a synonym to denote something "nasty" / something ridiculously nice.

A term for someone who is unpopular and UGLY. Someone or a group of people who you wouldnt want to assosiate yourself with. Usually are greasy nasty creepy .

An acronym for,

Yonder Under Cause klakkitycaidenlovesnicole.