yack

As a letter s

is the letter s with a.

As a noun yack is

chatter.

As a verb yack is

(slang) to vomit, usually because of intoxication.

As nouns the difference between yack and null

is that yack is chatter while null is zero, nil; the cardinal number before einn.

As a verb yack

is (slang) to vomit, usually because of intoxication.

As a noun yack

is chatter.

As a verb yack

is (slang) to vomit, usually because of intoxication.

As a proper noun yap is

an atoll in the caroline islands of western micronesia.

As a noun yack

is chatter.

As a verb yack

is (slang) to vomit, usually because of intoxication.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between zack and yack

is that zack is (australia|obsolete) sixpence while yack is chatter.

As a verb yack is

(slang) to vomit, usually because of intoxication.

As nouns the difference between yack and ack

is that yack is chatter while ack is the letter a as used in signalling and other types of communications.

As a verb yack

is (slang) to vomit, usually because of intoxication.

As an interjection ack is

(radio communications) acknowledged or ack can be expressing distaste, alarm, or trepidation.

In slang|lang=en terms the difference between yack and mack

is that yack is (slang) to vomit, usually because of intoxication while mack is (slang) to seduce or flirt with.

As nouns the difference between yack and mack

is that yack is chatter while mack is (slang) an individual skilled in the art of seduction using verbal skills.

As verbs the difference between yack and mack

is that yack is (slang) to vomit, usually because of intoxication while mack is (slang) to act as pimp; to pander.

As nouns the difference between rack and yack

is that rack is dress, skirt while yack is chatter.

As a verb yack is

(slang) to vomit, usually because of intoxication.

As nouns the difference between yack and fack

is that yack is chatter while fack is one of the four stomachs of a ruminating animal; rumen; paunch.

As a verb yack

is (slang) to vomit, usually because of intoxication.