Yip is an abstract noun for the feeling when you are happy/ excited/ want to party.It is not usually used in the same way as happy it is used like the word yay. For example-

someone who is sexy beyond mean

The "yips" is a set of conditions associated with having your nerves badly rattled. Can affect the performance of athletes and in the case of combat veterans is a symptom of PTSD(Post Traumatic Stress Disorder).

Over Thinking Something So Much You Become Unable To do It. You Than Will Often Proceed To Implode.

Happens When Hitting On Girls

Making Game Winning Goals
Making Public Speeches

another word for yay-yo, snow, blow,crack(as my friend calls me every day(See crackhead))cocomocaine!sniffsniff while you suckkers takke a whiff whiff of my seeedless weed!haha

A word that originated as a description of an animals sound, most often linked to the sounds foxes and small dogs make. Used as a word, it can be an exclamation of excitement or to get ones attention. Some times it is also used as an affirmative substituting the word yes. The word is popular in the 'furry' community as well.

When you suddenly and unexpectedly lose the ability to perform a simple, everyday task, and then follow by messing up the attempt completely.
For example, one could be holding a cup of coffee and instead of raising it as intended to your mouth, you fling it across the room.