What do we call phrases such as "Obamacare" that create a new meaning by combining existing terms?

A web site that employs staff members who post new items on the site throughout the day, and utilizes software that easily facilitates this process, uses ________________ updating to change its content

Fill in the blank(s) with correct word

Interpersonal messages can be taken back and erased, like hitting the delete key on a computer

Indicate whether the statement is true or false.