1. Slang for "yes".
For fun in unofficial occasion between good friends.
e. g.

2. yea + yup = yeap

3. The awesomest way to say ''yeah'' or ''yes''. Only the coolest people say it. When you compare ''yeap'' to ''yeah'', ''yeap'' is by far the best. ''Yeah'' is just a poser! If you say "yeap", you're cool. (Also can be written as : yeep)
e. g.

4. combination of yeah and yep

5. The act of putting "Yep" and "Yeah" into one word b/c you can't decide which one to use!
e. g.

Urban Dictionary.