crucial, Being of vital or central importance

The precise way to bring a couch up a flight of stairs.

turn (spin) around on the spot - or turn from a central point

A pivot is where a start-up company decides to switch direction in how they make their revenue. This is often after their first plan results in failure. Pivot as relates to entrepreneurship.

A hot chick a guy will bring with him to a social outing to make him seem cooler to other chicks. Generally she is just friends with the guy and knows she is mainly there to help him get some e-z pussy.

When someone fixes excel file data to be pivot table ready.

To manipulate somebody into doing something, by telling them that they do not want to do it.