Yucky is a synonym of yechy.

As adjectives the difference between yucky and yechy

is that yucky is (colloquial|often|childish) of something highly offensive; causing aversion or disgust while yechy is (informal) highly offensive; causing aversion or disgust.

As a proper noun eek

is a river in alaska.

As an interjection yeek is

eek; the sound of a mouse.

As a noun terror

is terror.

As an interjection yeek is

eek; the sound of a mouse.

As an adjective prolific

is prolific.

As a verb prolificate is

(archaic|transitive) to make prolific; to fertilize; to impregnate.

As verbs the difference between fertilize and prolificate

is that fertilize is to make (the soil) more fertile by adding nutrients to it while prolificate is to make prolific; to fertilize; to impregnate.

As verbs the difference between impregnate and prolificate

is that impregnate is to cause to become pregnant while prolificate is (archaic|transitive) to make prolific; to fertilize; to impregnate.

As a verb disgust

is to cause an intense dislike for something.

As a noun disgust

is an intense dislike or loathing someone feels for something bad or nasty.

As an interjection yech is

(chiefly|us) an exclamation of disgust.

Yechy is a derived term of yech.

As an adjective yechy

is (informal) highly offensive; causing aversion or disgust.

As an interjection yech is

(chiefly|us) an exclamation of disgust.

As a noun offensive

is offensive (posture of attacking or being able to attack).

As an adjective yechy is

(informal) highly offensive; causing aversion or disgust.

As a noun aversion

is aversion.

As an adjective yechy is

(informal) highly offensive; causing aversion or disgust.