言之無物；廢話連篇（花俏而無實際內容的簡報）（in a PowerPoint presentation, any fancy transitions, sounds, and other effects that have no discernible purpose, use, or benefit）

Example Citation:

Some critics contend that PowerPoint's emphasis on bullets and animated graphics is anathema to the kind of critical thinking students should be learning in class.

'Beware of PowerPointlessness,' said Jamie McKenzie, the publisher of From Now On, an online journal about educational technology.

—Lisa Guernsey, "Learning, One Bullet Point at a Time," The New York Times, May 31, 2001